Year	2000 = 100
1981	82.47560958
1982	101.1210139
1983	66.20044507
1984	59.09272952
1985	28.99914635
1986	30.48267465
1987	26.27763168
1988	22.28553944
1989	16.39604644
1990	21.02626268
1991	47.65695287
1992	47.22864993
1993	57.07634971
1994	54.53341302
1995	80.18548318
1996	66.39786912
1997	83.95458789
1998	110.0046173
1999	97.71705689
2000	100
2001	125.7103481
2002	102.8275693
2003	84.89450397
2004	79.59763081
2005	62.60151046
2006	77.84892635
2007	89.43867144
2008	100.4956525
2009	114.7300953
2010	115.6257935
2011	185.3160615
2012	189.851763
2013	257.6916766
2014	356.1593323
2015	411.3611777
2016	386.5514207
2017	453.2999658
2018	430.6390761