Year current LCU 1967 141.5445896772658 1968 153.68383819287322 1969 152.61373286064645 1971 248.21734813611337 1972 186.94055290417649 1973 208.76156217882837 1974 307.0437927714605 1975 288.09267486467223 1976 333.19940024107956 1977 398.23260576868375 1978 444.56054960516605 1979 580.1954062696535 1980 649.3641188352705 1981 697.1724949654092 1982 748.5631248351648 1983 803.8082953909131 1984 863.2243914629003 1985 884.3471024469796 1986 897.228927012114 1987 1050.4731257859085 1988 1204.569090360893 1989 1260.3675140831638 1990 1676.2109831848006 1991 1849.7134318704484 1992 2290.559904162644 1993 2707.5317860632726 1994 3637.483162096542 1995 4261.523125677992 1996 4716.602472614999 1997 4929.280191411661 1998 5398.924156856019 1999 5632.081511536654 2000 4968.976087148645 2001 4907.821387617934 2002 5186.396530304375 2003 6797.249011309234 2004 7424.780355458524 2005 8628.229627388153 2006 9519.080720669599 2007 10543.400070151936 2008 11656.954153189625 2009 12293.282155530253 2010 13403.183603074793 2011 14681.581518490359 2012 15354.117827332884 2013 16123.73683171207 2014 16489.307386482527 2015 16896.320961055073 2016 17456.40039356665 2017 18011.4785732264 2018 19487.477417485654 2019 19606.129248747766 2020 18253.99925635606 2021 17275.104506456868 2022 17637.68634202849 2023 18452.940477348115