YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 2.97049e+01 6.22549e+00 363 2002 8 1.77587e+01 1.76011e+00 253 2002 9 8.42661e+00 3.71200e+00 163 2002 10 1.31974e+01 3.26983e+00 685 2002 11 8.83552e+00 2.54807e+00 259 2002 12 7.43709e+00 3.44018e+00 581 2003 1 5.87994e+00 4.74232e+00 83 2003 2 1.19369e+01 1.90377e+00 384 2003 3 2.01759e+01 4.44452e+00 700 2003 4 1.51400e+01 8.78921e+00 365 2003 5 1.71885e+01 2.30311e+00 519 2003 6 1.66332e+01 5.30811e+00 371 2003 7 2.40245e+01 8.33481e+00 384 2003 8 1.69127e+01 4.92809e+00 93 2003 9 2.09908e+01 9.27042e+00 296 2003 10 6.69704e+00 2.06346e+00 65 2003 11 7.24766e+00 4.52915e+00 73 2003 12 6.33546e+00 2.90897e+00 151 2004 1 8.39382e+00 3.09614e+00 686 2004 2 1.25421e+01 3.47485e+00 665 2004 3 1.20742e+01 4.22634e+00 802 2004 4 1.42778e+01 4.51471e+00 339 2004 5 1.32917e+01 7.90387e+00 184 2004 6 1.67315e+01 4.06078e+00 332 2004 7 1.88243e+01 3.64389e+00 330 2004 8 1.85192e+01 6.34951e+00 224 2004 9 8.76721e+00 5.89521e+00 233 2004 10 1.14998e+01 3.43984e+00 679 2004 11 8.61023e+00 3.47512e+00 702 2004 12 8.31971e+00 3.24822e+00 600 2005 1 9.22246e+00 3.02489e+00 846 2005 2 1.27409e+01 3.51527e+00 467 2005 3 1.67751e+01 5.18898e+00 328 2005 4 1.37305e+01 5.21238e+00 439 2005 5 2.08608e+01 4.15168e+00 273 2005 6 1.84901e+01 5.96466e+00 137 2005 7 1.29554e+01 6.26906e+00 258 2005 8 2.30237e+01 6.66328e+00 236 2005 9 1.70763e+01 6.91914e+00 558 2005 10 1.80497e+01 2.06742e+00 97 2005 11 5.11258e+00 3.52510e+00 438 2005 12 4.00325e-01 4.72192e-01 469 2006 1 6.28596e+00 2.85458e+00 233 2006 2 2.84878e-01 1.10875e+00 125 2006 3 1.84432e+01 5.28866e+00 731 2006 4 1.96766e+01 6.36201e+00 757 2006 5 1.90875e+01 5.20809e+00 320 2006 6 2.43789e+01 6.94936e+00 647 2006 7 1.70658e+01 3.93195e+00 233 2006 8 1.36841e+01 3.43118e+00 326 2006 9 1.83388e+01 3.98477e+00 474 2006 10 9.71197e+00 2.78697e+00 220 2006 11 8.20324e+00 2.41496e+00 512 2006 12 6.68760e+00 4.25056e+00 448 2007 1 8.52832e+00 3.11280e+00 796 2007 2 1.34287e+01 4.97407e+00 343 2007 3 1.32789e+01 4.25935e+00 680 2007 4 2.12474e+01 1.01936e+01 502 2007 5 2.00551e+01 7.35653e+00 394 2007 6 2.12198e+01 3.34083e+00 248 2007 7 2.32797e+01 3.68439e+00 553 2007 8 1.56700e+01 6.29249e+00 342 2007 9 1.81865e+01 7.08100e+00 386 2007 10 1.04931e+01 3.72653e+00 265 2007 11 9.22285e+00 1.71369e+00 391 2007 12 1.17198e+01 5.10708e+00 404 2008 1 1.29463e+01 3.67064e+00 451 2008 2 1.21127e+01 2.59205e+00 768 2008 3 2.18676e+01 8.87998e+00 311 2008 4 1.69436e+01 5.89430e+00 624 2008 5 2.56722e+01 4.03414e+00 388 2008 6 2.04792e+01 4.53009e+00 309 2008 7 2.53124e+01 4.05075e+00 328 2008 8 2.22185e+01 4.86216e+00 359 2008 9 2.21496e+01 4.16808e+00 395 2008 10 1.96274e+01 4.50242e+00 296 2008 11 1.14328e+01 4.44392e+00 622 2008 12 9.95472e+00 2.63221e+00 797 2009 1 1.05890e+01 1.90679e+00 383 2009 2 1.05311e+01 5.04243e+00 641 2009 3 1.59112e+01 7.74097e+00 576 2009 4 1.95319e+01 5.61000e+00 448 2009 5 2.79462e+01 6.13933e+00 514 2009 6 2.27377e+01 9.09821e+00 312 2009 7 2.18036e+01 5.16483e+00 131 2009 8 2.08154e+01 4.87457e+00 313 2009 9 2.22873e+01 6.82639e+00 461 2009 10 1.29416e+01 4.69504e+00 937 2009 11 9.64005e+00 6.03914e+00 377 2009 12 7.52104e+00 1.17478e+00 497 2010 1 1.18145e+01 4.36710e+00 443 2010 2 1.07806e+01 2.89005e+00 60 2010 3 1.11970e+01 6.30163e+00 301 2010 4 2.05062e+01 5.33452e+00 625 2010 5 2.38059e+01 7.69520e+00 276 2010 6 2.29044e+01 8.18847e+00 620 2010 7 1.94241e+01 4.15250e+00 233 2010 8 2.06331e+01 4.12682e+00 489 2010 9 2.21573e+01 4.94148e+00 385 2010 10 1.05433e+01 4.12099e+00 526 2010 11 1.15159e+01 3.14686e+00 883 2010 12 1.04078e+01 2.92814e+00 501 2011 1 7.28237e+00 2.49083e+00 288 2011 2 1.43407e+01 4.38560e+00 262 2011 3 1.60299e+01 6.27075e+00 614 2011 4 2.27967e+01 3.53884e+00 768 2011 5 1.88700e+01 4.35513e+00 681 2011 6 2.20222e+01 3.28244e+00 383 2011 7 1.93820e+01 5.87527e+00 322 2011 8 2.14587e+01 6.52110e+00 500 2011 9 1.76948e+01 4.22829e+00 512 2011 10 2.51084e+01 7.55759e+00 93 2011 11 6.33435e+00 2.62301e+00 730 2011 12 7.26202e+00 2.98330e+00 718 2012 1 1.03092e+01 3.99981e+00 640 2012 2 1.50058e+01 3.31037e+00 429 2012 3 1.73411e+01 2.92083e+00 509 2012 4 1.62382e+01 5.46108e+00 479 2012 5 1.79271e+01 2.63409e+00 325 2012 6 1.66023e+01 4.42531e+00 384 2012 7 1.26212e+01 6.75592e+00 24 2012 8 2.72987e+01 4.33396e+00 66 2012 9 9.75600e+00 4.09504e+00 417 2012 10 1.22493e+01 5.66478e+00 386 2012 11 1.11244e+01 5.05799e+00 636 2012 12 6.56431e+00 2.05948e+00 528 2013 1 7.95537e+00 3.22474e+00 736 2013 2 1.33172e+01 5.74981e+00 798 2013 3 1.13815e+01 5.41453e+00 418 2013 4 2.40622e+01 4.28149e+00 569 2013 5 2.05239e+01 4.66177e+00 510 2013 6 2.54273e+01 6.44818e+00 263 2013 7 2.23720e+01 5.29829e+00 344 2013 8 2.33497e+01 5.87901e+00 214 2013 9 1.65977e+01 5.46259e+00 476 2013 10 1.15863e+01 2.74698e+00 647 2013 11 9.03633e+00 3.76669e+00 666 2013 12 6.69151e+00 1.45980e+00 446 2014 1 1.18413e+01 3.47886e+00 448 2014 2 1.70419e+01 3.10571e+00 854 2014 3 1.63825e+01 5.08705e+00 599 2014 4 1.92579e+01 5.84057e+00 448 2014 5 2.39438e+01 7.23024e+00 427 2014 6 2.25650e+01 7.96971e+00 279 2014 7 2.50160e+01 5.69790e+00 383 2014 8 2.10516e+01 4.37102e+00 199 2014 9 1.61594e+01 5.12765e+00 205 2014 10 1.21569e+01 4.38285e+00 514 2014 11 1.22929e+01 3.62831e+00 626 2014 12 7.81670e+00 2.68236e+00 678 2015 1 8.02187e+00 1.42924e+00 440 2015 2 1.14844e+01 4.12309e+00 513 2015 3 1.69498e+01 3.63121e+00 989 2015 4 1.91035e+01 2.00487e+00 448 2015 5 2.39892e+01 6.82059e+00 415 2015 6 2.12377e+01 4.67816e+00 458 2015 7 1.84297e+01 7.72888e+00 251 2015 8 2.32677e+01 6.51821e+00 470 2015 9 2.02339e+01 4.57639e+00 464 2015 10 1.05656e+01 5.49325e+00 343 2015 11 7.08031e+00 3.07672e+00 203 2015 12 9.03733e+00 3.41346e+00 192 2016 1 8.46914e+00 6.68249e+00 11 2016 2 1.07741e+01 3.58929e+00 512 2016 3 1.74485e+01 7.54139e+00 384 2016 4 1.57018e+01 5.42939e+00 464 2016 5 1.40105e+01 1.45088e+00 146 2016 6 1.78384e+01 7.84068e+00 488 2016 7 1.91309e+01 3.95714e+00 265 2016 8 1.76276e+01 5.54116e+00 239 2016 9 1.96510e+01 3.32921e+00 225 2016 10 7.57154e+00 3.01687e+00 140 2016 11 8.99397e+00 2.01698e+00 855 2016 12 8.02143e+00 1.79159e+00 421 2017 1 8.03022e+00 3.49208e+00 461 2017 2 7.75630e+00 1.27515e+00 94 2017 3 1.50460e+01 4.64585e+00 524 2017 4 1.53488e+01 2.90748e+00 384 2017 5 2.23165e+01 5.94643e+00 506 2017 6 2.08488e+01 6.03488e+00 365 2017 7 1.98913e+01 3.88673e+00 261 2017 8 1.92812e+01 6.96215e+00 400 2017 9 2.21198e+01 1.16297e+01 272 2017 10 3.94806e+00 1.14612e+00 139 2017 11 5.43400e+00 2.49902e+00 349 2017 12 4.75283e+00 1.98020e+00 622 2018 1 6.57074e+00 6.11484e-01 134 2018 2 1.31543e+01 2.96240e+00 286 2018 3 1.12368e+01 4.54438e+00 717 2018 4 1.41310e+01 3.55197e+00 310 2018 5 1.85674e+01 4.47647e+00 119 2018 6 1.82990e+01 4.39576e+00 438 2018 7 2.09060e+01 8.78523e+00 360 2018 8 2.49188e+01 6.73708e+00 162 2018 9 1.05223e+01 6.31321e+00 493 2018 10 6.16730e+00 3.49156e+00 289 2018 11 7.68036e+00 2.60941e+00 119 2018 12 5.58057e+00 1.88523e+00 606 2019 1 7.64190e+00 2.68896e+00 408 2019 2 1.31865e+01 4.32704e+00 880 2019 3 1.75369e+01 3.82628e+00 749 2019 4 1.53759e+01 7.08868e+00 356 2019 5 1.92057e+01 1.06149e+01 208 2019 6 2.39170e+01 2.88202e+00 498 2019 7 2.94310e+01 8.11297e+00 588 2019 8 2.09386e+01 4.93168e+00 308 2019 9 1.65209e+01 6.43557e+00 403 2019 10 1.26298e+01 4.65796e+00 533 2019 11 9.44147e+00 3.64594e+00 698 2019 12 8.42080e+00 3.21906e+00 555 2020 1 7.55053e+00 2.43649e+00 508 2020 2 1.08753e+01 1.21436e+00 107 2020 3 1.57278e+01 5.16438e+00 676 2020 4 2.13605e+01 6.40034e+00 398 2020 5 1.94189e+01 5.31258e+00 331 2020 6 1.85314e+01 5.09504e+00 399 2020 7 2.31732e+01 4.03781e+00 316 2020 8 2.02686e+01 4.85268e+00 284 2020 9 1.68946e+01 5.54846e+00 363 2020 10 1.23615e+01 3.70586e+00 184 2020 11 5.89701e+00 3.19522e+00 315 2020 12 9.08682e+00 3.08657e+00 563 2021 1 7.15468e+00 2.66961e+00 271 2021 2 1.32694e+01 3.38513e+00 447 2021 3 1.24872e+01 4.24088e+00 483 2021 4 1.94125e+01 5.98853e+00 576 2021 5 2.60460e+01 7.17359e+00 419 2021 6 1.58070e+01 3.97390e+00 188 2021 7 1.67992e+01 8.50073e+00 414 2021 8 2.06008e+01 6.54490e+00 337 2021 9 1.93544e+01 6.20406e+00 437 2021 10 1.04447e+01 4.31184e+00 313 2021 11 9.02137e+00 3.69977e+00 321 2021 12 9.31256e+00 2.62685e+00 881 2022 1 6.28750e+00 1.91738e+00 622 2022 2 1.22965e+01 4.24449e+00 721 2022 3 1.49497e+01 5.07418e+00 582 2022 4 2.38879e+01 2.94860e+00 256 2022 5 2.45951e+01 6.56037e+00 438 2022 6 2.10882e+01 8.31751e+00 365 2022 7 7.45190e+00 2.66841e+00 82 2022 8 2.23762e+01 7.89525e+00 365 2022 9 1.47032e+01 5.51587e+00 330 2022 10 1.11080e+01 3.07206e+00 686 2022 11 1.19238e+01 4.79607e+00 666 2022 12 1.03357e+01 2.92910e+00 712 2023 1 1.07585e+01 3.38280e+00 703 2023 2 1.48574e+01 6.05376e+00 1012 2023 3 2.24779e+01 5.54455e+00 486 2023 4 2.83434e+01 1.06877e+01 139 2023 5 1.86057e+01 6.28636e+00 544 2023 6 1.61888e+01 6.75244e+00 541 2023 7 1.46943e+01 9.60653e+00 556 2023 8 1.70186e+01 7.91458e+00 314 2023 9 1.87205e+01 5.13854e+00 521 2023 10 1.00360e+01 3.97945e+00 429 2023 11 1.09418e+01 3.03939e+00 270 2023 12 6.75830e+00 4.20695e+00 268 2024 1 1.32221e+01 3.59304e+00 440 2024 2 1.01253e+01 4.55608e+00 728 2024 3 1.93180e+01 6.98713e+00 502 2024 4 3.00903e+01 1.26712e+00 64