Year	%
1999	0
2000	4.81
2001	6.7
2002	6.84
2003	4.89
2004	4.88
2005	3.74
2006	3.9
2007	4.89
2008	4.89
2009	4.89
2010	4.91
2011	4.91
2013	4.91
2015	4.88
2017	4.83
2018	4.72
2019	4.75
2020	4.74
2021	4.69