Year	%
2005	4.9390008943253
2006	4.75092644765004
2007	4.50428076628894
2008	4.19912384001137
2009	4.70300396072203
2010	4.62021662059414
2011	4.69684531050885
2012	4.75557889210946
2013	4.67249759967552
2014	4.69700335511658
2015	5.31731759650771
2016	5.44397257111967
2017	5.91271906081673
2018	5.91854176977054
2019	6.19862631822147
2020	6.37432250408069
2021	6.16933763669525
2022	5.8647335037465