Year Index (Units) 1992 0.159 1993 2.303 1994 43.567 1995 80.422 1996 85.792 1997 86.126 1998 79.586 1999 79.215 2000 80.959 2001 82.400 2002 85.000 2003 88.000 2004 97.200 2005 102.410 2006 114.126 2007 136.449 2008 157.400 2009 158.500 2010 171.050 2011 180.670 2012 180.200 2013 186.550 2014 186.280 2015 200.400 2016 231.800 2017 250.200 2018 254.000 2019 260.000 2020 266.800 2021 298.800 2022 341.700 2023 348.847 2024 366.290 2025 384.604 2026 399.988 2027 415.988 2028 432.627 2029 449.933