Year	2015 = 100
1980	21.854901036
1981	21.0069308754
1982	22.5255171773
1983	17.8710647897
1984	16.8594950846
1985	12.8305080554
1986	14.8340140781
1987	15.5898294056
1988	16.4507800521
1989	17.4647077304
1990	17.9893154149
1991	17.6828004292
1992	16.9872185331
1993	19.3652447851
1994	24.4428411488
1995	14.7311332943
1996	15.0798817163
1997	14.3917769095
1998	16.1862860806
1999	23.3369365044
2000	22.7771778604
2001	21.5978164394
2002	31.3289528804
2003	33.2651831213
2004	35.2794182721
2005	37.8445690098
2006	41.9973277428
2007	40.8453126379
2008	43.7644591675
2009	45.7589274633
2010	52.6639506302
2011	61.9739679703
2012	87.1182357506
2013	102.5666734376
2014	90.4860697474
2015	100
2016	65.4685165095
2017	65.6869414227
2018	73.0399684681
2019	80.720825749
2020	71.7142612786
2021	74.5598224679