Year % of total freshwater withdrawal 1970 11.1111111111 1971 8.935128519 1972 7.2210065646 1973 5.8358061325 1974 4.6931407942 1975 3.734439834 1976 3.734439834 1977 3.734439834 1978 3.734439834 1979 3.734439834 1980 3.734439834 1981 7.816091954 1982 11.3167259786 1983 14.3521594684 1984 17.0093457944 1985 19.3548387097 1986 21.3115828092 1987 23.7775030902 1988 27 1989 22.2501028383 1990 17.8429817605 1991 17.5798817798 1992 17.2899034189 1993 16.9687061045 1994 16.6109614823 1995 16.2100554815 1996 14.6176185866 1997 13.9258266309 1998 12.7653345045 1999 12.4049817263 2000 11.9641857862 2001 10.6892116721 2002 9.2678544692 2003 8.6259079903 2004 7.702542874 2005 7.3314694004 2006 6.4259046525 2007 7.4106517169 2008 5.5337690632 2009 5.3970701619 2010 9.1870824053 2011 13.0428936399 2012 17.8895877009 2013 11.6888335275 2014 8.08369774 2015 4.2990884454 2016 4.3443311405 2017 3.9048982025 2018 4.3198829463 2019 5.4733849834 2020 5.015720533