Year	2015 = 100
1980	18.4339543754
1981	19.8267427799
1982	15.1630674444
1983	12.9497667299
1984	19.4575538895
1985	19.2251448197
1986	18.4522805387
1987	17.1317971775
1988	19.3675890908
1989	20.7508812079
1990	22.151499882
1991	20.2787326037
1992	23.4091744837
1993	22.7394365193
1994	25.1551580337
1995	30.0570539427
1996	31.1617885471
1997	32.8064813604
1998	32.0003086033
1999	36.8391112264
2000	36.3984257672
2001	31.3530940904
2002	51.0776301381
2003	56.2917821215
2004	56.6983066025
2005	59.3240892557
2006	77.9568369821
2007	77.4013100855
2008	87.2160098639
2009	70.8256785533
2010	88.901060025
2011	112.2302532777
2012	116.6082928005
2013	113.1780096104
2014	109.475306006
2015	100
2016	82.3182974225
2017	84.9912253187
2018	83.8029268954
2019	79.0607013948
2020	53.6803417583
2021	78.8145644658