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 6.11740e+01 1.62367e-01 281 2002 8 5.89642e+01 7.02661e-01 256 2002 9 5.26430e+01 1.40688e+00 389 2002 10 4.57528e+01 2.56394e+00 909 2002 11 3.86047e+01 1.87019e+00 513 2002 12 3.39995e+01 4.02575e-01 783 2003 1 3.56468e+01 1.08618e+00 640 2003 2 4.21350e+01 1.72423e+00 398 2003 3 5.17545e+01 2.35189e+00 671 2003 4 5.85809e+01 1.10043e+00 447 2003 5 6.15517e+01 6.05558e-01 373 2003 6 6.24459e+01 7.70232e-02 258 2003 7 6.17854e+01 7.38387e-01 126 2003 8 5.85497e+01 9.54101e-01 403 2003 9 5.36701e+01 1.25443e+00 384 2003 10 4.57125e+01 1.43726e+00 653 2003 11 3.65869e+01 1.01445e+00 408 2003 12 3.39406e+01 3.57258e-01 529 2004 1 3.65322e+01 1.45997e+00 672 2004 2 4.34106e+01 2.60224e+00 576 2004 3 5.19853e+01 2.54265e+00 707 2004 4 5.76700e+01 1.34573e+00 407 2004 5 6.17953e+01 6.72182e-01 268 2004 6 6.24445e+01 1.03117e-01 640 2004 7 6.15279e+01 4.25141e-01 409 2004 8 5.79765e+01 1.04744e+00 512 2004 9 5.18936e+01 1.46800e+00 487 2004 10 4.40605e+01 2.34107e+00 546 2004 11 3.76941e+01 1.79380e+00 260 2004 12 3.39473e+01 3.37527e-01 586 2005 1 3.69330e+01 1.45804e+00 718 2005 2 4.39271e+01 1.32276e+00 448 2005 3 5.16864e+01 2.33170e+00 486 2005 4 5.76317e+01 1.35553e+00 448 2005 5 6.17895e+01 4.67724e-01 518 2005 6 6.24947e+01 1.74711e-01 299 2005 7 6.14105e+01 4.80013e-01 262 2005 8 5.88731e+01 1.30604e+00 536 2005 9 5.37224e+01 1.54446e+00 655 2005 10 4.62611e+01 2.10312e+00 439 2005 11 3.76536e+01 1.96016e+00 725 2005 12 3.39194e+01 3.34454e-01 847 2006 1 3.52937e+01 1.06748e+00 582 2006 2 4.43694e+01 2.15304e+00 867 2006 3 5.14586e+01 2.30517e+00 733 2006 4 5.80916e+01 1.30512e+00 763 2006 5 6.14869e+01 5.73267e-01 512 2006 6 6.25656e+01 1.90620e-01 371 2006 7 6.09137e+01 6.25949e-01 245 2006 8 5.86566e+01 1.16930e+00 209 2006 9 5.24031e+01 1.79129e+00 512 2006 10 4.63849e+01 1.36469e+00 481 2006 11 3.72884e+01 1.35991e+00 532 2006 12 3.35521e+01 3.91589e-01 58 2007 1 3.67955e+01 1.80533e+00 650 2007 2 4.37267e+01 2.31949e+00 534 2007 3 4.98740e+01 2.16106e+00 289 2007 4 5.77505e+01 1.52074e+00 514 2007 5 6.10989e+01 5.24789e-01 294 2007 6 6.25353e+01 1.33352e-01 504 2007 7 6.14593e+01 4.99901e-01 463 2007 8 5.90827e+01 1.38455e+00 330 2007 9 5.29908e+01 1.89411e+00 435 2007 10 4.55839e+01 2.30801e+00 327 2007 11 3.80561e+01 1.87728e+00 847 2007 12 3.40141e+01 5.21157e-01 435 2008 1 3.64277e+01 1.85574e+00 470 2008 2 4.38172e+01 2.92699e+00 485 2008 3 5.09952e+01 1.78157e+00 380 2008 4 5.77123e+01 1.44441e+00 374 2008 5 6.16104e+01 5.60691e-01 367 2008 6 6.24678e+01 1.24404e-01 431 2008 7 6.03912e+01 4.58358e-01 208 2008 8 5.98070e+01 4.81437e-01 361 2008 9 5.32101e+01 2.00825e+00 444 2008 10 4.74043e+01 2.27951e+00 398 2008 11 3.70491e+01 1.50302e+00 664 2008 12 3.37807e+01 1.79519e-01 469 2009 1 3.66424e+01 1.90773e+00 701 2009 2 4.37534e+01 2.10287e+00 444 2009 3 5.02677e+01 2.13043e+00 513 2009 4 5.75822e+01 1.47803e+00 516 2009 5 6.12278e+01 4.97148e-01 343 2009 6 6.25419e+01 1.13617e-01 449 2009 7 6.14177e+01 8.23968e-01 320 2009 8 5.85785e+01 1.14863e+00 422 2009 9 5.26093e+01 1.72958e+00 432 2009 10 4.70261e+01 1.65817e+00 709 2009 11 3.72857e+01 1.79036e+00 613 2009 12 3.40721e+01 4.23774e-01 448 2010 1 3.63938e+01 1.77765e+00 640 2010 2 4.45433e+01 2.26872e+00 523 2010 3 5.15822e+01 2.55931e+00 474 2010 4 5.75301e+01 1.62711e+00 385 2010 5 6.14695e+01 5.11775e-01 449 2010 6 6.24410e+01 1.22308e-01 607 2010 7 6.06331e+01 4.70981e-01 256 2010 8 5.87624e+01 1.26084e+00 256 2010 9 5.49787e+01 4.66437e-01 210 2010 10 4.60717e+01 2.62009e+00 693 2010 11 3.85354e+01 1.94982e+00 613 2010 12 3.39980e+01 4.07912e-01 909 2011 1 3.67169e+01 1.94688e+00 555 2011 2 4.33356e+01 2.50215e+00 798 2011 3 5.15850e+01 2.65529e+00 740 2011 4 5.85442e+01 1.02631e+00 518 2011 5 6.16884e+01 4.20796e-01 510 2011 6 6.26004e+01 9.64247e-02 428 2011 7 6.09911e+01 3.64853e-01 416 2011 8 5.96222e+01 7.16080e-01 211 2011 9 5.34497e+01 1.25925e+00 492 2011 10 4.61206e+01 1.36669e+00 158 2011 11 3.92220e+01 1.39314e+00 369 2011 12 3.39366e+01 4.65970e-01 742 2012 1 3.61173e+01 1.40242e+00 888 2012 2 4.45318e+01 1.56981e+00 347 2012 3 5.23226e+01 2.83089e+00 257 2012 4 5.73108e+01 1.20221e+00 572 2012 5 6.14191e+01 5.16068e-01 378 2012 6 6.25948e+01 1.04914e-01 312 2012 7 6.11908e+01 7.67914e-01 347 2012 8 5.90397e+01 9.67467e-01 479 2012 9 5.31172e+01 2.32086e+00 463 2012 10 4.48808e+01 2.65381e+00 359 2012 11 3.84926e+01 1.93276e+00 654 2012 12 3.41870e+01 4.40352e-01 330 2013 1 3.67427e+01 1.92653e+00 290 2013 2 4.25805e+01 2.25434e+00 666 2013 3 5.18522e+01 2.61003e+00 565 2013 4 5.80716e+01 1.37353e+00 276 2013 5 6.13671e+01 3.40820e-01 288 2013 6 6.24334e+01 2.74332e-02 181 2013 7 6.07382e+01 5.41968e-01 317 2013 8 5.91207e+01 9.07958e-01 243 2013 9 5.30815e+01 2.04309e+00 478 2013 10 4.61643e+01 2.16169e+00 611 2013 11 3.80622e+01 1.83321e+00 350 2013 12 3.39611e+01 3.88845e-01 337 2014 1 3.72076e+01 1.23721e+00 599 2014 2 4.33255e+01 1.64335e+00 642 2014 3 5.00635e+01 1.69760e+00 615 2014 4 5.92156e+01 8.72421e-01 446 2014 5 6.10065e+01 6.62243e-01 173 2014 6 6.24659e+01 8.45667e-02 465 2014 7 6.10894e+01 6.53449e-01 448 2014 8 5.92462e+01 9.53345e-01 495 2014 9 5.36664e+01 2.95104e+00 240 2014 10 4.49970e+01 2.48205e+00 653 2014 11 3.77027e+01 1.90652e+00 724 2014 12 3.39412e+01 2.66799e-01 378 2015 1 3.62668e+01 1.78843e+00 680 2015 2 4.44740e+01 2.04130e+00 765 2015 3 5.16285e+01 2.14921e+00 933 2015 4 5.72871e+01 6.62694e-01 248 2015 5 6.14408e+01 5.52656e-01 832 2015 6 6.24289e+01 8.79658e-02 487 2015 7 6.10952e+01 3.76321e-01 345 2015 8 5.90567e+01 1.03564e+00 644 2015 9 5.28297e+01 1.79790e+00 441 2015 10 4.62266e+01 1.66508e+00 296 2015 11 3.88575e+01 1.44964e+00 399 2015 12 3.39075e+01 4.68223e-01 353 2016 1 3.54711e+01 1.84350e+00 197 2016 2 4.39880e+01 2.18151e+00 640 2016 3 5.07036e+01 2.51905e+00 384 2016 4 5.76161e+01 1.31235e+00 526 2016 5 6.15700e+01 3.89004e-01 253 2016 6 6.23217e+01 1.06459e-01 372 2016 7 6.12084e+01 5.26953e-01 512 2016 8 5.90791e+01 1.19636e+00 345 2016 9 5.27222e+01 1.53434e+00 527 2016 10 4.59067e+01 1.75945e+00 349 2016 11 3.77377e+01 1.77508e+00 380 2016 12 3.38238e+01 2.10894e-01 273 2017 1 3.70322e+01 1.33967e+00 323 2017 2 4.42911e+01 1.93644e+00 726 2017 3 5.18242e+01 2.22753e+00 486 2017 4 5.83448e+01 1.60240e+00 227 2017 5 6.13660e+01 7.24941e-01 503 2017 6 6.24143e+01 1.06941e-01 318 2017 7 6.12840e+01 7.07843e-01 311 2017 8 5.85661e+01 1.00598e+00 263 2017 9 5.34643e+01 1.74669e+00 576 2017 10 4.49584e+01 2.34504e+00 471 2017 11 3.83831e+01 2.00767e+00 545 2017 12 3.37943e+01 2.58593e-01 802 2018 1 3.59136e+01 1.58223e+00 643 2018 2 4.34181e+01 1.96494e+00 653 2018 3 5.14442e+01 2.36234e+00 788 2018 4 5.82255e+01 1.54989e+00 593 2018 5 6.05832e+01 5.35932e-03 64 2018 6 6.24526e+01 2.23512e-01 42 2018 7 6.11841e+01 5.41085e-01 454 2018 8 5.87009e+01 1.16849e+00 342 2018 9 5.22736e+01 1.36927e+00 570 2018 10 4.53984e+01 2.20840e+00 508 2018 11 3.84411e+01 1.62374e+00 307 2018 12 3.39581e+01 4.71420e-01 605 2019 1 3.65524e+01 1.41442e+00 536 2019 2 4.33039e+01 2.89745e+00 890 2019 3 5.09950e+01 2.16438e+00 719 2019 4 5.83484e+01 1.39271e+00 647 2019 5 6.16315e+01 5.44613e-01 296 2019 6 6.24687e+01 1.30775e-01 448 2019 7 6.09653e+01 3.90220e-01 406 2019 8 5.88653e+01 9.60426e-01 448 2019 9 5.37719e+01 1.73875e+00 452 2019 10 4.54748e+01 2.30883e+00 506 2019 11 3.78983e+01 1.97868e+00 732 2019 12 3.41255e+01 5.40448e-01 464 2020 1 3.60162e+01 1.64296e+00 941 2020 2 4.37437e+01 2.54181e+00 461 2020 3 5.28952e+01 2.00339e+00 680 2020 4 5.76692e+01 1.75861e+00 388 2020 5 6.13739e+01 6.86540e-01 519 2020 6 6.24267e+01 5.93118e-02 287 2020 7 6.13701e+01 5.92809e-01 357 2020 8 5.87294e+01 1.03329e+00 685 2020 9 5.24844e+01 2.29831e+00 318 2020 10 4.50816e+01 2.26871e+00 447 2020 11 3.63821e+01 1.01061e+00 319 2020 12 3.38522e+01 2.80983e-01 528 2021 1 3.63305e+01 1.57004e+00 704 2021 2 4.45481e+01 2.09880e+00 472 2021 3 5.17968e+01 2.69342e+00 821 2021 4 5.85426e+01 1.14273e+00 351 2021 5 6.07648e+01 4.93355e-01 329 2021 6 6.24739e+01 1.28793e-01 198 2021 7 6.13016e+01 7.03301e-01 491 2021 8 5.87595e+01 1.37875e+00 298 2021 9 5.26668e+01 2.34058e+00 425 2021 10 4.54310e+01 2.47338e+00 463 2021 11 3.73742e+01 2.12910e+00 657 2021 12 3.40197e+01 4.45001e-01 800 2022 1 3.57062e+01 1.40162e+00 560 2022 2 4.40849e+01 2.56778e+00 575 2022 3 5.15887e+01 2.62902e+00 384 2022 4 5.92923e+01 7.65539e-01 194 2022 5 6.12922e+01 5.43638e-01 709 2022 6 6.24178e+01 1.09874e-01 323 2022 7 6.14436e+01 6.50234e-01 228 2022 8 5.87756e+01 1.06670e+00 664 2022 9 5.37891e+01 2.14228e+00 598 2022 10 4.60417e+01 2.80241e+00 550 2022 11 3.77534e+01 2.37314e+00 441 2022 12 3.38869e+01 4.76115e-01 535 2023 1 3.53341e+01 9.56019e-01 582 2023 2 4.43958e+01 2.73218e+00 710 2023 3 5.17744e+01 2.86944e+00 689 2023 4 5.77325e+01 1.57010e+00 574 2023 5 6.11622e+01 5.29462e-01 513 2023 6 6.24653e+01 1.32456e-01 527 2023 7 6.13999e+01 7.30425e-01 388 2023 8 5.93709e+01 8.89392e-01 347 2023 9 5.44480e+01 1.05302e+00 487 2023 10 4.57729e+01 2.90585e+00 474 2023 11 3.74980e+01 2.02270e+00 515 2023 12 3.36931e+01 1.95255e-01 184 2024 1 3.80496e+01 1.59864e+00 256 2024 2 4.36899e+01 2.22697e+00 439 2024 3 5.12010e+01 1.67990e+00 368 2024 4 nan nan 0