Year Percent 2000 99.21811 2001 99.21873 2002 99.21934 2003 99.21996 2004 99.22056 2005 99.22118 2006 99.22177 2007 99.22237 2008 99.22297 2009 99.22356 2010 99.22415 2011 99.22473 2012 99.22476 2013 99.22479 2014 99.22482 2015 99.22485 2016 99.22493 2017 99.22504 2018 99.22519 2019 99.22538 2020 99.22562 2021 99.22589 2022 99.2262