Year	%
1997	10.206896551724142
1998	10.919540229885062
2000	11.585365853658539
2001	12.28284059737885
2002	13.466711499663752
2003	13.708836239010584
2004	14.735467015022865
2005	16.237014236244715
2006	16.639209225700167
2007	17.30646601198827
2008	17.800845828527493
2009	18.464052287581694
2010	18.737166324435318
2011	20.53516631889039
2012	21.375802349521617
2013	22.45702005730659
2014	22.15804350497726
2015	23.636991028295373
2016	23.810068649885586
2017	24.01693215996436
2018	24.074279995552104
2019	24.078116025272838
2020	24.868590117976883
2021	25.92505302851757
2022	26.33820651548291
2023	27.033997655334115