Year	Percent
1984-01-01	73.57670000000000
1985-01-01	76.57520000000000
1986-01-01	80.33510000000000
1987-01-01	88.71950000000000
1988-01-01	90.75860000000000
1989-01-01	100.74600000000001
1990-01-01	103.52799999999999
1991-01-01	119.15100000000001
1992-01-01	117.48500000000000
1993-01-01	115.68700000000001
1994-01-01	113.61399999999999
1995-01-01	116.58200000000001
1996-01-01	124.79100000000000
1997-01-01	130.63100000000000
1998-01-01	142.20000000000000
1999-01-01	156.73000000000000
2000-01-01	155.05000000000000
2001-01-01	158.14000000000000
2002-01-01	158.34000000000000
2003-01-01	156.03799999999998
2004-01-01	133.52500000000000
2005-01-01	129.56900000000000
2006-01-01	126.02100000000000
2007-01-01	117.62899999999999
2008-01-01	111.40299999999999
2009-01-01	114.05500000000000
2010-01-01	98.84380000000000
2011-01-01	90.11930000000000
2012-01-01	95.85350000000000
2013-01-01	96.96710000000000
2014-01-01	103.16900000000000
2015-01-01	129.90500000000000
2016-01-01	135.35100000000000