Year % (cumulative) 1999 90.0076904296875 2007 93.5138092041016 2008 93.6318664550781 2009 93.7110824584961 2010 93.8406600952148 2011 93.8296966552734 2012 93.8275527954102 2013 93.8511428833008 2014 93.8500137329102 2015 93.8436737060547 2016 93.9019012451172 2017 93.6846008300781 2018 93.6172790527344 2019 93.6227416992188 2021 97.6777648925781 2022 98.6941452026367 2023 97.9614105224609