Year Percent 2000 36.07338 2001 36.07338 2002 36.07338 2003 36.07338 2004 36.07338 2005 37.38688 2006 38.70038 2007 40.01387 2008 41.32737 2009 42.64087 2010 43.95437 2011 45.26787 2012 46.58136 2013 47.89486 2014 49.20836 2015 50.52186 2016 51.83535 2017 53.14885 2018 54.46235 2019 55.77585 2020 57.08935 2021 58.40284 2022 59.71634