Year Count Valid Min Max Mean Stdev Median 2007 435 393 10.459467 10.655634 10.57414 0.050714 10.585234 2008 435 393 10.8705 11.2747 11.093882 0.101229 11.101566 2009 435 393 10.954634 11.0169 10.971046 0.014107 10.965667 2010 435 393 10.621834 10.942866 10.773319 0.07408 10.771566 2011 435 393 10.618767 10.8476 10.752296 0.056988 10.755433 2012 435 393 11.125767 11.4279 11.297447 0.068539 11.305567 2013 435 393 10.225866 10.561833 10.411798 0.082535 10.413533 2014 435 393 12.404634 12.875033 12.597257 0.107648 12.574866 2015 435 393 11.709833 12.087533 11.952509 0.078101 11.970966 2016 435 393 12.6263 12.897533 12.731596 0.056563 12.7197 2017 435 393 10.666866 10.9492 10.828347 0.05391 10.835134 2018 435 393 11.009666 11.444734 11.238154 0.091939 11.235766 2019 435 393 10.170333 10.419766 10.304115 0.053985 10.304367 2020 435 393 10.511733 10.625633 10.555881 0.024471 10.5533 2021 435 393 11.153733 11.599867 11.394338 0.090717 11.400434 2022 435 393 9.900241 10.131379 10.037289 0.062832 10.04669 2023 435 393 11.233033 11.644667 11.422519 0.092465 11.4188