YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.81292e+01 4.52097e-01 25 2000 3 2.01436e+01 1.17517e+00 122 2000 4 2.12435e+01 1.67135e+00 127 2000 5 2.58125e+01 1.91322e+00 112 2000 6 2.87022e+01 9.78994e-01 144 2000 7 3.01970e+01 1.75694e+00 131 2000 8 2.96364e+01 4.88839e-01 58 2000 9 2.73874e+01 1.40231e+00 174 2000 10 2.28425e+01 1.71355e+00 183 2000 11 2.17550e+01 2.65014e+00 124 2000 12 1.65034e+01 3.52544e-02 16 2001 1 1.29200e+01 0.00000e+00 1 2001 2 1.56082e+01 7.33115e-01 44 2001 3 1.69389e+01 1.72108e+00 85 2001 4 2.12717e+01 2.57723e+00 161 2001 5 2.54928e+01 1.25100e+00 177 2001 6 2.54306e+01 2.11238e+00 32 2001 7 2.89380e+01 1.01874e+00 68 2001 8 2.83387e+01 1.06558e+00 109 2001 9 2.73159e+01 1.68477e+00 158 2001 10 2.25410e+01 1.67864e+00 194 2001 11 1.96621e+01 9.27532e-01 201 2001 12 1.87296e+01 1.96938e+00 160 2002 1 1.60884e+01 1.98204e-02 16 2002 2 1.48597e+01 3.92426e-01 32 2002 3 1.28760e+01 3.25169e-01 29 2002 4 2.32351e+01 2.42670e+00 111 2002 5 2.56735e+01 1.86027e+00 147 2002 6 2.80316e+01 8.55025e-01 125 2002 7 2.97797e+01 1.30008e+00 521 2002 8 2.94382e+01 1.09516e+00 551 2002 9 2.83123e+01 1.32836e+00 443 2002 10 2.63928e+01 2.26105e+00 462 2002 11 1.94026e+01 2.18720e+00 282 2002 12 1.50796e+01 1.08834e+00 144 2003 1 1.30175e+01 9.60009e-01 186 2003 2 1.44797e+01 1.24327e+00 210 2003 3 1.98052e+01 1.80180e+00 363 2003 4 2.11804e+01 2.60296e+00 433 2003 5 2.55843e+01 1.49121e+00 555 2003 6 2.75031e+01 1.70671e+00 380 2003 7 2.88456e+01 1.23486e+00 462 2003 8 2.89687e+01 1.48258e+00 421 2003 9 2.76078e+01 1.45895e+00 605 2003 10 2.30207e+01 1.10146e+00 539 2003 11 2.13701e+01 1.50579e+00 644 2003 12 1.61584e+01 1.71389e-01 16 2004 1 1.39211e+01 6.54207e-01 83 2004 2 1.29130e+01 5.12706e-01 93 2004 3 1.81694e+01 1.65622e+00 469 2004 4 2.02369e+01 1.90929e+00 463 2004 5 2.58832e+01 2.24138e+00 731 2004 6 2.80466e+01 1.50264e+00 430 2004 7 3.00631e+01 1.11193e+00 625 2004 8 2.85734e+01 1.60428e+00 531 2004 9 2.71030e+01 1.71376e+00 613 2004 10 2.45352e+01 1.76281e+00 586 2004 11 2.10016e+01 2.34252e+00 428 2004 12 1.63572e+01 1.39843e+00 178 2005 1 1.35405e+01 1.38318e+00 141 2005 2 1.44995e+01 1.27377e+00 240 2005 3 1.62319e+01 1.52382e+00 394 2005 4 2.03998e+01 1.40523e+00 551 2005 5 2.45800e+01 2.65935e+00 661 2005 6 2.81231e+01 1.50113e+00 544 2005 7 2.96324e+01 1.75498e+00 582 2005 8 2.92002e+01 1.54313e+00 464 2005 9 2.79887e+01 1.18603e+00 724 2005 10 2.47461e+01 2.44772e+00 813 2005 11 1.93607e+01 1.90549e+00 396 2005 12 1.64410e+01 4.77783e-01 84 2006 1 1.50482e+01 1.08000e+00 252 2006 2 1.40007e+01 1.13218e+00 307 2006 3 1.78031e+01 1.50057e+00 470 2006 4 2.25460e+01 2.31111e+00 638 2006 5 2.50385e+01 1.98277e+00 634 2006 6 2.83042e+01 1.56913e+00 736 2006 7 2.99519e+01 9.91976e-01 484 2006 8 3.01213e+01 1.05820e+00 638 2006 9 2.81316e+01 1.72567e+00 576 2006 10 2.45487e+01 2.48009e+00 526 2006 11 1.82013e+01 1.75080e+00 439 2006 12 1.53818e+01 1.15593e+00 124 2007 1 1.42859e+01 1.44957e+00 189 2007 2 1.35149e+01 1.50504e+00 162 2007 3 1.79547e+01 2.16336e+00 469 2007 4 2.05468e+01 1.71580e+00 531 2007 5 2.44823e+01 1.07200e+00 796 2007 6 2.81812e+01 1.51104e+00 564 2007 7 2.87525e+01 1.38203e+00 410 2007 8 2.99735e+01 1.69907e+00 680 2007 9 2.82531e+01 1.48942e+00 585 2007 10 2.49860e+01 2.24837e+00 564 2007 11 1.91590e+01 1.32416e+00 481 2007 12 1.73182e+01 1.55639e+00 281 2008 1 1.48852e+01 1.19449e+00 164 2008 2 1.59210e+01 1.24042e+00 307 2008 3 1.74887e+01 1.36309e+00 440 2008 4 2.12196e+01 2.07263e+00 491 2008 5 2.48363e+01 2.50535e+00 662 2008 6 2.93773e+01 1.38593e+00 638 2008 7 2.90684e+01 1.21945e+00 552 2008 8 2.84930e+01 1.22548e+00 438 2008 9 2.69116e+01 1.79840e+00 587 2008 10 2.31217e+01 1.83105e+00 630 2008 11 1.89018e+01 1.26261e+00 340 2008 12 1.62652e+01 1.00024e+00 151 2009 1 1.45708e+01 1.58782e+00 238 2009 2 1.34288e+01 1.20894e+00 171 2009 3 1.85031e+01 2.27306e+00 356 2009 4 2.15287e+01 2.06540e+00 523 2009 5 2.55438e+01 1.78335e+00 414 2009 6 2.87193e+01 2.05383e+00 713 2009 7 2.88827e+01 1.39062e+00 585 2009 8 2.91286e+01 1.31650e+00 450 2009 9 2.81467e+01 1.27356e+00 522 2009 10 2.49385e+01 2.84184e+00 431 2009 11 1.94722e+01 1.68467e+00 340 2009 12 1.36426e+01 1.19142e+00 89 2010 1 1.38051e+01 1.13673e+00 86 2010 2 1.19348e+01 9.20077e-01 228 2010 3 1.48131e+01 1.92978e+00 337 2010 4 2.13471e+01 1.54946e+00 604 2010 5 2.67402e+01 2.27183e+00 644 2010 6 3.01587e+01 1.73426e+00 757 2010 7 2.98387e+01 1.67148e+00 710 2010 8 2.98380e+01 1.40625e+00 326 2010 9 2.92193e+01 1.46033e+00 748 2010 10 2.34275e+01 1.31190e+00 777 2010 11 1.90139e+01 1.24049e+00 569 2010 12 1.52628e+01 2.09052e+00 322 2011 1 1.14538e+01 7.90641e-01 162 2011 2 1.51009e+01 3.49401e+00 253 2011 3 1.93256e+01 1.89236e+00 453 2011 4 2.30695e+01 1.76285e+00 537 2011 5 2.52097e+01 1.99893e+00 777 2011 6 2.97604e+01 1.01441e+00 728 2011 7 3.00766e+01 1.20566e+00 582 2011 8 3.05669e+01 9.52216e-01 654 2011 9 2.69895e+01 1.05810e+00 697 2011 10 2.30441e+01 1.82666e+00 700 2011 11 1.83446e+01 8.50660e-01 374 2011 12 1.58188e+01 5.32306e-01 125 2012 1 1.51817e+01 1.15334e+00 292 2012 2 1.51875e+01 1.12604e+00 57 2012 3 2.10067e+01 2.62490e+00 497 2012 4 2.28496e+01 1.30007e+00 715 2012 5 2.69149e+01 1.54777e+00 770 2012 6 2.76985e+01 8.85810e-01 558 2012 7 2.90713e+01 1.07617e+00 403 2012 8 2.88376e+01 1.20876e+00 323 2012 9 2.72932e+01 1.58083e+00 762 2012 10 2.39775e+01 1.53384e+00 730 2012 11 1.86021e+01 1.52211e+00 425 2012 12 1.71182e+01 1.44186e+00 222 2013 1 1.56699e+01 1.23970e+00 190 2013 2 1.56186e+01 9.10572e-01 200 2013 3 1.57943e+01 1.53741e+00 534 2013 4 2.02734e+01 1.45160e+00 279 2013 5 2.42710e+01 2.44566e+00 666 2013 6 2.85144e+01 1.06421e+00 526 2013 7 2.85324e+01 1.42624e+00 326 2013 8 2.82857e+01 2.00429e+00 480 2013 9 2.90260e+01 1.51987e+00 600 2013 10 2.39447e+01 2.37933e+00 531 2013 11 2.01378e+01 1.67452e+00 269 2013 12 1.70348e+01 1.44280e+00 129 2014 1 1.21177e+01 8.52559e-01 189 2014 2 1.36959e+01 2.01290e+00 191 2014 3 1.68590e+01 1.68521e+00 313 2014 4 1.98288e+01 1.86548e+00 466 2014 5 2.49244e+01 1.98931e+00 543 2014 6 2.89766e+01 1.67542e+00 621 2014 7 2.85078e+01 1.34540e+00 634 2014 8 2.93133e+01 1.45635e+00 463 2014 9 2.88519e+01 1.84716e+00 479 2014 10 2.47157e+01 1.72527e+00 775 2014 11 1.74019e+01 2.46526e+00 346 2014 12 1.69671e+01 1.44994e+00 228 2015 1 1.45885e+01 9.86191e-01 122 2015 2 1.34057e+01 7.93870e-01 238 2015 3 1.95951e+01 2.47872e+00 305 2015 4 2.26431e+01 1.30682e+00 231 2015 5 2.61622e+01 2.04808e+00 658 2015 6 2.94039e+01 1.74245e+00 659 2015 7 2.95056e+01 1.63143e+00 499 2015 8 2.94426e+01 1.54057e+00 616 2015 9 2.78919e+01 1.43908e+00 495 2015 10 2.33475e+01 1.44419e+00 603 2015 11 2.12061e+01 2.28483e+00 415 2015 12 1.81134e+01 1.50260e+00 168 2016 1 1.42242e+01 7.54783e-01 127 2016 2 1.42748e+01 1.82122e+00 463 2016 3 1.79689e+01 1.63190e+00 342 2016 4 2.14417e+01 1.88323e+00 469 2016 5 2.48737e+01 1.54963e+00 482 2016 6 2.91833e+01 1.13252e+00 610 2016 7 3.04827e+01 1.03044e+00 714 2016 8 2.96805e+01 1.60339e+00 501 2016 9 2.90897e+01 1.16932e+00 628 2016 10 2.52580e+01 1.32724e+00 743 2016 11 2.08598e+01 2.05462e+00 458 2016 12 1.79990e+01 1.06558e+00 188 2017 1 1.65099e+01 1.35540e+00 212 2017 2 1.73927e+01 1.73951e+00 370 2017 3 1.88392e+01 2.45055e+00 557 2017 4 2.29709e+01 1.79706e+00 679 2017 5 2.46823e+01 1.70155e+00 605 2017 6 2.70007e+01 1.42783e+00 298 2017 7 2.97857e+01 1.46227e+00 571 2017 8 3.01379e+01 1.57859e+00 345 2017 9 2.73582e+01 1.68245e+00 489 2017 10 2.45749e+01 2.17591e+00 702 2017 11 2.01685e+01 1.70966e+00 493 2017 12 1.68168e+01 2.04678e+00 210 2018 1 1.43013e+01 2.14538e-01 30 2018 2 2.02108e+01 2.51373e+00 323 2018 3 1.85988e+01 2.01257e+00 594 2018 4 2.09267e+01 9.01285e-01 524 2018 5 2.60470e+01 1.95377e+00 516 2018 6 2.93849e+01 1.74280e+00 636 2018 7 2.97814e+01 1.20106e+00 615 2018 8 2.98411e+01 1.21648e+00 540 2018 9 2.95526e+01 1.50376e+00 653 2018 10 2.63478e+01 2.52079e+00 778 2018 11 2.03568e+01 2.52468e+00 117 2018 12 1.51095e+01 1.35595e+00 166 2019 1 1.58856e+01 1.62637e+00 189 2019 2 1.69432e+01 1.83889e+00 79 2019 3 1.80385e+01 1.44707e+00 413 2019 4 2.16820e+01 1.51867e+00 407 2019 5 2.70555e+01 2.31850e+00 749 2019 6 2.90631e+01 1.21236e+00 489 2019 7 3.00732e+01 9.29656e-01 539 2019 8 2.98809e+01 1.40157e+00 491 2019 9 2.95799e+01 1.18236e+00 833 2019 10 2.72516e+01 2.48965e+00 548 2019 11 1.92553e+01 1.85116e+00 273 2019 12 1.70724e+01 1.16098e+00 232 2020 1 1.61676e+01 1.40516e+00 311 2020 2 1.57630e+01 1.39616e+00 348 2020 3 2.12802e+01 3.76865e+00 512 2020 4 2.27867e+01 1.41731e+00 453 2020 5 2.46490e+01 1.70045e+00 685 2020 6 2.82562e+01 1.13477e+00 510 2020 7 2.96887e+01 1.38290e+00 485 2020 8 3.05473e+01 7.77829e-01 416 2020 9 2.87339e+01 2.31316e+00 409 2020 10 2.45141e+01 1.13773e+00 671 2020 11 2.12515e+01 1.56793e+00 649 2020 12 1.72913e+01 1.22857e+00 156 2021 1 1.51779e+01 8.74721e-01 174 2021 2 1.44309e+01 2.18125e+00 312 2021 3 1.83383e+01 1.86724e+00 386 2021 4 2.08586e+01 1.52323e+00 559 2021 5 2.51598e+01 1.49388e+00 639 2021 6 2.77067e+01 1.06869e+00 309 2021 7 2.98804e+01 1.48272e+00 446 2021 8 3.04916e+01 1.44674e+00 461 2021 9 2.75076e+01 1.59140e+00 513 2021 10 2.50216e+01 1.87490e+00 439 2021 11 1.84901e+01 1.36225e+00 619 2021 12 1.75189e+01 1.12000e+00 441 2022 1 1.49531e+01 2.21561e+00 334 2022 2 1.47171e+01 1.99330e+00 413 2022 3 1.85655e+01 1.28314e+00 746 2022 4 2.24221e+01 1.38325e+00 499 2022 5 2.61187e+01 1.13803e+00 643 2022 6 2.98744e+01 1.57451e+00 589 2022 7 3.01575e+01 1.35180e+00 526 2022 8 3.03070e+01 1.27672e+00 450 2022 9 2.81266e+01 1.40455e+00 683 2022 10 2.30454e+01 1.63540e+00 692 2022 11 2.09004e+01 2.23104e+00 446 2022 12 1.83426e+01 1.73531e+00 383 2023 1 1.58660e+01 1.14068e+00 510 2023 2 1.69077e+01 2.16627e+00 407 2023 3 1.99606e+01 1.72365e+00 356 2023 4 2.20592e+01 1.26287e+00 457 2023 5 2.53164e+01 2.07909e+00 564 2023 6 2.86012e+01 2.05139e+00 546 2023 7 3.05874e+01 1.29041e+00 620 2023 8 3.11712e+01 9.88492e-01 843 2023 9 2.89811e+01 1.12475e+00 693 2023 10 2.39128e+01 2.04052e+00 754 2023 11 1.95478e+01 1.45332e+00 579 2023 12 1.49689e+01 1.42184e+00 253 2024 1 1.32136e+01 1.02891e+00 302 2024 2 1.50027e+01 1.58582e+00 446 2024 3 1.87668e+01 1.10905e+00 355 2024 4 2.15771e+01 9.41387e-01 48