Year	%
1998	15.099629518373897
1999	14.768813276275978
2000	14.344957587181904
2001	14.20102152499088
2002	15.90204897551224
2003	15.50429669832656
2004	16.38893813153697
2005	15.747569560844779
2006	16.69315045579994
2007	17.529913128995236
2008	18.034548309777666
2009	19.065862406260187
2010	19.032546059573086
2011	19.76401179941002
2012	21.570404548076127
2013	22.48768472906405
2014	22.872115628433782
2015	23.246630612069715
2016	23.990259467629535
2017	24.173588743854882
2018	25.345001682935038
2019	25.985342019543967
2020	26.323074417847256
2021	26.439511835531157
2022	26.737880032867697
2023	27.16172439571393