Year % (cumulative) 2006 19.5964508056641 2007 20.0931301116943 2008 21.8030605316162 2009 22.5401191711426 2010 23.6802291870117 2011 24.5494003295898 2012 25.6777305603027 2013 27.3384494781494 2014 27.74241065979 2015 28.2105293273926 2016 29.1279201507568 2017 30.7051792144775 2018 31.5955905914307 2019 32.3696517944336 2020 32.9779891967773 2021 36.619270324707 2022 36.8380699157715