Year	%
1988	4.28
1990	4.8
1991	5.12
1993	7.31
1996	5.57
1997	2.95
1999	3
2000	2.67
2001	2.42
2002	2.5
2003	2.48
2004	1.87
2005	2.12
2006	2.07
2007	2.06
2008	1.68
2009	1.9
2010	2.06
2011	1.85
2012	1.76
2013	1.7
2014	1.24
2015	2.02
2016	2.58
2017	2.67
2018	1.91
2019	5.68
2020	2.61
2021	2.79