Year	Percent
1990	5.14
1991	7.61
1992	5.95
1993	6.59
1994	4.87
1995	6.7
1996	5.5
1997	7
1998	8.44
1999	7.15
2000	5.56
2001	6.454
2002	7.48
2003	7.8
2004	4.92
2005	6.03
2006	8.08
2007	6.7
2008	7.36
2009	6.93
2010	5.28
2011	5.615
2012	6.986
2013	5.08
2014	8.25
2015	7.555
2016	5.19
2017	5.235
2018	5.279
2019	5.324
2020	5.369
2021	5.413
2022	5.458
2023	5.503
2024	5.547
2025	5.592
2026	5.637
2027	5.681
2028	5.726
2029	5.771
2030	5.815