Year	Percent
1995	4.13183
1996	2.12165
1997	2.53744
1998	6.30552
1999	51.28308
2000	179.98459
2001	58.17338
2002	64.3109
2003	29.29418
2004	16.96013
2005	16.99673
2006	22.3734
2007	7.80946
2008	7.07696
2009	7.39554
2010	8.98704
2011	15.2754
2012	13.03469
2013	9.27802
2014	4.72039
2015	4.21806
2016	8.61106
2017	19.5234
2018	9.32759
2019	4.36874
2020	3.7821
2021	3.356