Year	2015 = 100
1980	24.4091311052
1981	22.4946968931
1982	20.3409109461
1983	17.416101996
1984	16.884288347
1985	15.6080305162
1986	15.9004924256
1987	14.5178244015
1988	19.4368989355
1989	25.712015204
1990	22.4149129823
1991	17.0438561734
1992	18.5594182829
1993	15.4726683973
1994	21.2976059677
1995	28.8440960943
1996	32.478000352
1997	34.1217091249
1998	20.8670338305
1999	21.2341584448
2000	23.981117228
2001	24.390243889
2002	28.3846758985
2003	38.6128427108
2004	52.8959632057
2005	60.3401319267
2006	71.1129939891
2007	82.248986258
2008	105.4893179019
2009	84.8416752264
2010	122.5907522677
2011	149.2992797763
2012	163.0938691334
2013	146.2325243367
2014	127.8676424835
2015	100
2016	87.0725655156
2017	120.5531682968
2018	131.9343339398
2019	130.4323064708
2020	132.7452036436
2021	91.5817950607