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Department of Water and Environmental Regulation HYANN V83 Output 19/04/2021
Site 616011 Swan River - Walyunga
Variable 151.00 Stream Discharge Volume in Megalitres
Year Annual Days Rank
Total Missing
(Megalitres)
-----------------------------------------------
1970 189500 134 27
1971 137300 11 36
1972 150700 4 32
1973 326100 61 14
1974 1270000 1
1975 311400 16
1976 144000 34
1977 77300 47
1978 304400 18
1979 95180 44
1980 121700 38
1981 711400 9 3
1982 200700 3 26
1983 959300 2
1984 313200 34 15
1985 121500 39
1986 356100 12
1987 210000 25
1988 329500 13
1989 228100 22
1990 424000 10
1991 371100 11
1992 628200 5
1993 226700 23
1994 182300 29
1995 593400 6
1996 682200 4
1997 174000 31
1998 188400 28
1999 563800 7
2000 548500 8
2001 86130 45
2002 80980 46
2003 267100 20
2004 111000 41
2005 292000 19
2006 107400 42
2007 140100 35
2008 181900 30
2009 246100 21
2010 23790 51
2011 135000 37
2012 35050 50
2013 150100 33
2014 118000 40
2015 45270 48
2016 222100 24
2017 452600 9
2018 310600 17
2019 102800 43
2020 39540 49
2021 23420 258 52
Total 14310000 514
Minimum 23420
Maximum 1270000
Mean 275200
Median 195100