Year	%
1997	17.014880505035325
1998	17.05997294453631
1999	17.994739285161685
2000	19.57392279352875
2001	19.550492610837434
2002	20.283092238295215
2003	21.37759851070431
2004	22.07242514500705
2005	22.17839805825243
2006	22.884819131224457
2007	23.87653200181572
2008	24.15356711003628
2009	24.46792452830188
2010	24.377358490566035
2011	25.113327289211234
2012	26.037623171095838
2013	27.681764004767572
2014	28.240527688295742
2015	28.266543835406118
2016	28.28593389700231
2017	29.789522200030728
2018	30.51628764597418
2019	31.817483484406207
2020	32.406696360006144
2021	32.72143184947223
2022	32.579113924050645
2023	32.95364657490902