Year % (cumulative) 1991 70.9158706665039 2006 99.0748291015625 2007 99.0130310058594 2008 99.2754211425781 2009 99.2918319702148 2010 99.3129272460938 2011 99.3267974853516 2012 99.5307998657227 2013 99.5296325683594 2014 99.5012283325195 2015 99.4358978271484 2016 99.47265625 2017 99.3611907958984 2018 99.3280181884766 2019 99.1813507080078 2020 99.159797668457 2021 99.1825790405273 2022 99.0303039550781