Year	2015 = 100
1980	6.8131247979
1981	9.3903167298
1982	5.6735083418
1983	5.9049129402
1984	5.0018206543
1985	7.0742229072
1986	6.9011814158
1987	7.846254182
1988	6.046213095
1989	6.255091582
1990	7.0363380839
1991	9.9268477473
1992	11.1637360484
1993	12.3473808144
1994	12.3791221529
1995	14.5784897616
1996	16.74099646
1997	18.9516271253
1998	20.3042177256
1999	17.9707173616
2000	18.7345573222
2001	17.4853820516
2002	18.1732373417
2003	16.54550053
2004	19.2174045293
2005	24.8895510636
2006	29.8545927188
2007	36.7142441753
2008	52.0288462956
2009	46.5362635802
2010	57.2393304166
2011	81.1689414789
2012	87.8342437852
2013	95.6105339109
2014	107.703553975
2015	100
2016	86.284559422
2017	95.0992972735
2018	102.3499283002
2019	100.1782587696
2020	72.493086554
2021	97.8768332454