Year	2015 = 100
1980	27.727242906
1981	20.5052065211
1982	19.5642643815
1983	20.6029667448
1984	23.560213448
1985	22.6437113736
1986	22.5337311173
1987	22.1549102642
1988	30.0612681967
1989	29.5358070081
1990	28.4237844862
1991	20.1508257147
1992	15.2261545412
1993	13.9797117164
1994	15.3483548209
1995	17.9964375594
1996	17.8122129825
1997	16.6838375032
1998	16.3729585418
1999	9.3148547595
2000	9.2872210697
2001	10.1369568938
2002	13.0350396431
2003	15.8628867707
2004	22.0747089436
2005	27.6659246047
2006	31.1420119338
2007	35.6935101848
2008	50.6617563959
2009	40.2991244043
2010	61.0243883781
2011	75.9926345892
2012	72.5384239222
2013	72.5384239222
2014	91.1310264701
2015	100
2016	82.8186932339
2017	141.5732240813
2018	230.3300448788
2019	154.0842683285
2020	162.6028993215
2021	270.5798353141