Year Index (Units) 1992 0.002 1993 0.057 1994 0.575 1995 2.968 1996 4.931 1997 5.823 1998 6.522 1999 8.309 2000 10.230 2001 10.873 2002 11.449 2003 12.386 2004 14.281 2005 17.718 2006 20.344 2007 24.994 2008 32.261 2009 36.320 2010 41.283 2011 47.148 2012 50.831 2013 53.020 2014 61.466 2015 85.379 2016 100.000 2017 122.168 2018 140.911 2019 152.565 2020 168.220 2021 209.947 2022 281.920 2023 335.927 2024 388.296 2025 417.283 2026 441.201 2027 463.265 2028 486.425 2029 510.743