Year	Percent
1960	24.7624
1961	36.97289
1962	76.08278
1963	87.74163
1964	217.36082
1965	105.77255
1966	69.90881
1967	82.40518
1968	118.86556
1969	56.30405
1970	49.18209
1971	44.99995
1972	36.51621
1973	29.76622
1974	27.61084
1975	30.41195
1976	35.03147
1977	39.64821
1978	26.92001
1979	44.1951
1980	46.10063
1981	62.63891
1982	47.60044
1983	41.41564
1984	116.54283
1985	53.47994
1986	131.76751
1987	134.99841
1988	127.08379
1989	106.86148
1990	115.46631
1991	123.24877
1992	161.13658
1993	158.31744
1994	137.00587
1995	179.03472
1996	175.16579
1997	111.39397
1998	184.40792
1999	171.72442
2000	189.49147
2001	160.77475
2002	88.29053
2003	125.3012
2004	106.12686
2005	91.78859
2006	90.34386
2007	74.98228
2008	74.8169
2009	51.08699
2010	64.01626
2011	80.2782
2012	161.19469
2013	161.55371
2014	128.31273
2015	134.72439
2016	212.27196