Year	%
1990	13.6657433056325
1991	13.8297872340426
1992	13.9974126778784
1993	14.1328047571853
1994	14.2658208262417
1995	14.3949673121993
1996	14.5028180354267
1997	14.6166807076664
1998	14.7173913043478
1999	14.8143397678445
2000	14.9011014359033
2001	14.9665595871294
2002	15.0230595623589
2003	15.0769373377827
2004	15.1239340785579
2005	15.1718321737297
2006	15.2253836317136
2007	15.3209109730849
2008	15.4319901460496
2009	15.5453118870145
2010	15.6522001934236
2011	15.758657224112
2012	15.833954121606
2013	15.8798080332868
2014	15.9245381666086
2015	15.9580699238553
2016	15.9879902420717
2017	16.0148488967897
2018	16.1901707688607
2019	16.2488902042024
2020	16.266449412447
2021	16.2439106332941
2022	16.2345925898993