Year	Percent
1990	1.33
1991	1.38
1992	1.3
1993	1.2
1994	1.35
1995	0.98
1996	0.92
1997	1.3
1998	0.72
1999	1.11
2000	1.4
2001	1.56
2002	1.67
2003	2.15
2004	2.21
2005	2.13
2006	2.4
2007	2.77
2008	3.02
2009	3.63
2010	3.24
2011	3.02
2012	3.28
2013	3.26
2014	3.52
2015	3.76
2016	3.27
2017	3.421
2018	3.571
2019	3.722
2020	3.873
2021	4.024
2022	4.174
2023	4.325
2024	4.476
2025	4.626
2026	4.777
2027	4.928
2028	5.079
2029	5.229
2030	5.38