Year	2015 = 100
1980	4.9496058751
1981	5.266783471
1982	4.5151083441
1983	5.4687271674
1984	7.3171227988
1985	9.3190990134
1986	8.9554151991
1987	13.4031699095
1988	12.4374448868
1989	16.3395847316
1990	9.1618751701
1991	7.9693035403
1992	5.3794639992
1993	3.3771757183
1994	2.3102587439
1995	5.403199592
1996	4.8814299312
1997	5.0950952145
1998	5.455965703
1999	11.0646247827
2000	14.2319905059
2001	16.8687802067
2002	23.4220690693
2003	30.1023092369
2004	37.9233760146
2005	45.9367609893
2006	45.914001062
2007	48.1119997377
2008	53.7143275457
2009	52.1742864717
2010	55.9961658386
2011	59.0445834158
2012	66.4751816578
2013	69.3670209961
2014	79.3451622327
2015	100
2016	70.4780681622
2017	73.170433174
2018	94.0894454621
2019	106.2889964012
2020	79.9747078856
2021	108.8727710692