Year	Percent
1990	0.57
1991	0.48
1992	0.66
1993	0.88
1994	0.68
1995	0.97
1996	0.86
1997	0.65
1998	0.59
1999	0.89
2000	1.14
2001	0.66
2002	0.65
2003	1
2004	0.47
2005	1.02
2006	1.01
2007	0.9
2008	0.97
2009	0.71
2010	1.22
2011	1.06
2012	1.1
2013	1.36
2014	1.18
2015	1.36
2016	1.18
2017	1.231
2018	1.282
2019	1.332
2020	1.383
2021	1.434
2022	1.485
2023	1.536
2024	1.586
2025	1.637
2026	1.688
2027	1.739
2028	1.789
2029	1.84
2030	1.891