Year	2000 = 100
1980	37.29160233
1981	28.09104285
1982	26.47853808
1983	29.98365152
1984	24.0991081
1985	22.46444206
1986	38.46941927
1987	32.511671
1988	38.96477811
1989	44.85894897
1990	65.17011498
1991	56.70214892
1992	62.2582696
1993	86.79533523
1994	60.83849521
1995	80.91743119
1996	79.44954128
1997	102.9357798
1998	102.0183486
1999	104.7706422
2000	100
2001	133.0275229
2002	160.3669725
2003	170.2752294
2004	179.1620183
2005	202.0036697
2006	284.4036697
2007	285.5508257
2008	384.7922936
2009	325.4431193
2010	366.286422
2011	435.6875229
2012	478.9700917
2013	429.1508257
2014	509.3365138
2015	498.4794794
2016	518.550487
2017	533.4106167
2018	540.0336095