Year % 2005 7.56870461676475 2006 6.98246338719549 2007 6.5818311184714 2008 6.30015689596002 2009 6.72398944853304 2010 5.80361618389437 2011 5.8580963627746 2012 6.06773694234154 2013 6.55250708579672 2014 5.46054456114402 2015 5.90027045402132 2016 6.40502020846628 2017 7.31420925681032 2018 7.75955914240081 2019 8.12309700319801 2020 7.93402953773633 2021 7.5657319257965 2022 244.908767030957