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Department of Water and Environmental Regulation HYANN V87 Output 21/01/2025 Site 612034 Collie River - South Branch Variable 151.00 Stream Discharge Volume in Megalitres Year Annual Days Rank Total Missing (Megalitres) ----------------------------------------------- 1952 15200 170 41 1953 9594 53 1954 7878 57 1955 67540 6 1956 31080 20 1957 31370 19 1958 34760 16 1959 9070 55 1960 24070 28 1961 42160 11 1962 13730 44 1963 112200 2 1964 217500 1 1965 32780 17 1966 20880 33 1967 61590 9 1968 2395 167 65 1969 0.0 365 74 1970 0.0 365 71 1971 66220 131 8 1972 9264 54 1973 35290 15 1974 96790 3 1975 22850 30 1976 8886 56 1977 13790 43 1978 21820 31 1979 5747 62 1980 12680 46 1981 29360 23 1982 19920 35 1983 89340 4 1984 26510 26 1985 29870 22 1986 11440 50 1987 7761 59 1988 42070 12 1989 14260 42 1990 40130 13 1991 66840 7 1992 49930 10 1993 30880 21 1994 11630 48 1995 27300 25 1996 87310 5 1997 18180 37 1998 23390 29 1999 24660 27 2000 19710 36 2001 1199 69 2002 7263 60 2003 10700 51 2004 13170 45 2005 39410 14 2006 11550 49 2007 21510 32 2008 9611 52 2009 31880 18 2010 112.6 70 2011 20750 34 2012 1817 66 2013 16550 38 2014 15790 40 2015 0.0 72 2016 16350 39 2017 7795 58 2018 12070 47 2019 1783 67 2020 4750 64 2021 28670 24 2022 6664 61 2023 1621 68 2024 5272 63 2025 0.0 346 73 Total 1984000 1544 Minimum 0.0 Maximum 217500 Mean 27550 Median 18940