Year	%
2001	1.55
2003	1.76
2004	2.09
2005	1.92
2006	2.02
2007	2.25
2008	2.44
2009	2.18
2010	2.47
2011	2.89
2012	2.88
2013	2.76
2014	2.87
2015	3.79
2016	2.83
2017	2.56
2019	4.07
2020	3.67
2021	4.02