Year	2000 = 100
1980	18.39517917
1981	20.69976963
1982	22.27143809
1983	22.50348346
1984	23.41379309
1985	22.71670151
1986	24.62450404
1987	28.13876571
1988	36.22381607
1989	39.68444822
1990	45.62590489
1991	48.63851728
1992	52.0785084
1993	62.1076555
1994	71.31686129
1995	80.46895576
1996	85.62843058
1997	91.99368033
1998	83.69027111
1999	88.75792845
2000	100
2001	89.34353108
2002	90.22453776
2003	102.3751553
2004	123.5501778
2005	133.6837412
2006	148.3913878
2007	157.8891286
2008	173.0462467
2009	151.1414514
2010	175.6579266
2011	177.910374
2012	183.5955341
2013	192.2798267
2014	195.0438476
2015	199.5635315
2016	199.6188055
2017	211.804413
2018	220.77687