Year	%
1996	1.91
1997	1.69
1998	1.42
1999	1.46
2000	1.99
2002	6.58
2003	6.73
2004	7.19
2005	7.06
2006	7.84
2009	5.27
2010	7.88
2018	8.41
2019	9.73