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Department of Water and Environmental Regulation HYANN V87 Output 26/02/2025 Site 704139 Gascoyne River - Nine Mile Bridge Variable 151.00 Stream Discharge Volume in Megalitres Year Annual Days Rank Total Missing (Megalitres) ----------------------------------------------- 1957 300900 34 34 1958 165900 44 1959 0.0 69 1960 3647000 2 1961 3493000 3 1962 217000 37 1963 1966000 9 1964 23290 57 1965 614900 25 1966 4688 60 1967 535300 29 1968 1116000 17 1969 203300 39 1970 118000 47 1971 748700 21 1972 12700 59 1973 108400 48 1974 1681000 13 1975 656900 24 1976 85860 50 1977 0.0 64 1978 297000 35 1979 18270 58 1980 2329000 6 1981 259200 36 1982 193600 40 1983 0.0 65 1984 2059000 8 1985 72740 53 1986 806800 20 1987 167600 43 1988 74950 51 1989 1188000 14 1990 957300 18 1991 137800 45 1992 877300 19 1993 3091 62 1994 466500 32 1995 1883000 10 1996 521800 31 1997 1140000 16 1998 581600 26 1999 1743000 11 2000 3152000 4 2001 550200 27 2002 0.0 66 2003 4503 61 2004 439300 33 2005 46690 55 2006 2486000 5 2007 48740 54 2008 527000 30 2009 690700 23 2010 1187000 15 2011 4423000 1 2012 108100 49 2013 0.0 67 2014 133500 46 2015 2140000 7 2016 0.0 68 2017 206900 38 2018 698700 22 2019 45740 56 2020 548400 28 2021 1699000 12 2022 189200 41 2023 184900 42 2024 73460 52 2025 1772 333 63 Total 51060000 367 Minimum 0.0 Maximum 4423000 Mean 740000 Median 297000