Year	2015 = 100
1980	57.588727029
1981	42.368850391
1982	38.5297049397
1983	44.3987947477
2000	42.8376166209
2001	47.6969795839
2002	48.0513829826
2003	60.05263673
2004	60.4298494032
2005	38.6971770983
2006	47.9050246242
2007	47.5177071998
2008	61.1385330854
2009	85.7680729378
2010	90.6914024008
2011	51.136017802
2012	57.4639959267
2013	56.4941054221
2014	55.5450881459
2015	100
2016	75.3492380068
2017	68.2476282044
2018	27.5865571966
2019	39.0938344939
2020	33.4928820264
2021	24.5343244592