Year	%
1996	42.82299
1999	35.93761
2000	34.89745
2001	35.08848
2002	37.64273
2003	38.12971
2004	38.47746
2006	35.82076
2007	37.24307
2010	42.89217
2011	42.83359
2012	35.88858
2013	35.03456
2015	39.08054
2016	42.10548
2020	37.83349
2021	37.48384