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Department of Water and Environmental Regulation HYANN V87 Output 30/11/2023 Site 607013 Lefroy Brook - Rainbow Trail Variable 151.00 Stream Discharge Volume in Megalitres Year Annual Days Rank Total Missing (Megalitres) ----------------------------------------------- 1979 33200 107 23 1980 40440 13 1981 62070 2 1982 30810 26 1983 40940 12 1984 49200 5 1985 32500 24 1986 22420 33 1987 11790 41 1988 49990 4 1989 34310 22 1990 43320 10 1991 46350 7 1992 42300 11 1993 35340 19 1994 22900 32 1995 35950 17 1996 65220 1 1997 44140 9 1998 37180 15 1999 61250 3 2000 38620 14 2001 16570 38 2002 23010 31 2003 35160 20 2004 22120 34 2005 34510 21 2006 19090 37 2007 24540 29 2008 36150 16 2009 44940 8 2010 6370 45 2011 13590 40 2012 8870 44 2013 32160 25 2014 24530 30 2015 11370 43 2016 47210 6 2017 19110 36 2018 25870 28 2019 11740 42 2020 14970 39 2021 35900 18 2022 21450 35 2023 25960 33 27 Total 1435000 140 Minimum 6370 Maximum 65220 Mean 31900 Median 33200