Year	2015 = 100
1980	41.403972625
1981	38.491440245
1982	37.7693232985
1983	37.9492111438
1984	40.0657016304
1985	43.8182374006
1986	42.4722694089
1987	40.2820468621
1988	42.4360930793
1989	46.1561149387
1990	45.849259303
1991	45.6674121997
1992	45.9828577472
1993	49.6001841493
1994	50.0681022923
1995	52.8623403093
1996	59.3166686801
1997	64.0974660017
1998	59.747625403
1999	62.3454300346
2000	69.9929991672
2001	71.2949297057
2002	69.9112223357
2003	68.8116034257
2004	72.6544502038
2005	76.1785174299
2006	78.3236913556
2007	85.802189732
2008	90.7075072028
2009	71.1034594469
2010	85.8262110493
2011	90.6363843766
2012	88.6389765212
2013	92.9062009953
2014	95.965493779
2015	100
2016	98.7008761808
2017	100.6702594694
2018	102.5380303514
2019	98.8545022049
2020	94.4831795929
2021	103.7294499933