Year	%
2001	1.55
2003	1.76
2004	2.09
2005	1.92
2006	2.43
2007	2.25
2008	2.82
2009	2.18
2010	2.47
2011	2.89
2012	3.31
2013	3.19
2014	3.28
2015	4.9
2016	3.84
2017	3.6
2019	5.78
2020	5
2021	5.7