Year Index 1992 1309.96 1993 63334.92 1994 627768.34 1995 2992861.51 1996 5394047.46 1997 6250944.87 1998 6912117.43 1999 8480039.41 2000 10871673.13 2001 12171795.75 2002 12263987.49 2003 12902927.67 2004 14068871.02 2005 15971002.72 2006 17420464.79 2007 19657766.63 2008 24611788.74 2009 28524973.50 2010 31196306.17 2011 33678925.09 2012 33869340.55 2013 33780943.69 2014 37868272.91 2015 56303884.05 2016 64137482.21 2017 73401082.84 2018 81436069.32 2019 87973432.35 2020 93146541.88 2021 98255421.48 2022 103397186.08 2023 108619131.32 2024 114042869.58