Year	2000 = 100
1980	72.94763461
1981	80.83636588
1982	79.8371677
1983	39.59168568
1984	47.94917659
1985	49.99691606
1986	52.45173626
1987	59.57564917
1988	78.49256769
1989	48.1280454
1990	45.24147289
1991	68.75346944
1992	86.75754025
1993	77.16647135
1994	56.66440511
1995	78.01764017
1996	60.93875285
1997	90.08820083
1998	97.55751557
1999	86.74520447
2000	100
2001	113.0142478
2002	79.95435761
2003	57.08998951
2004	102.8760871
2005	148.1977426
2006	207.3397891
2007	284.3187566
2008	311.1700487
2009	256.2141491
2010	240.5477086
2011	296.0587183
2012	316.6039598
2013	298.209369
2014	266.2617961
2015	205.5757725
2016	95.84901005
2017	64.82452353
2018	67.29167952