Year	%
1996	45.78502
1999	41.11235
2000	42.05156
2001	46.03466
2002	46.14849
2003	46.46261
2004	39.29014
2006	45.25788
2007	44.89736
2010	42.47361
2011	42.58085
2012	35.56998
2013	46.8065
2020	30.96554
2021	29.06623