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Department of Water and Environmental Regulation HYANN V87 Output 04/02/2023 Site 613027 South Coolup Main Drain - Yackaboon Variable 151.00 Stream Discharge Volume in Megalitres Year Annual Days Rank Total Missing (Megalitres) ----------------------------------------------- 1990 2650 138 18 1991 7770 2 1992 8318 1 1993 3338 12 1994 5471 5 1995 5084 7 1996 7576 3 1997 4053 9 1998 2733 17 1999 3.5 291 28 2000 0.0 366 34 2001 0.0 365 29 2002 0.0 365 30 2003 0.0 365 31 2004 0.0 366 32 2005 5516 161 4 2006 268.0 26 2007 2952 13 2008 4456 8 2009 2748 16 2010 396.1 25 2011 2128 19 2012 1459 23 2013 3642 10 2014 2115 20 2015 226.9 27 2016 1591 21 2017 2808 14 2018 5114 6 2019 1529 22 2020 888.4 24 2021 3362 11 2022 2760 15 2023 0.0 332 33 Total 90960 2749 Minimum 0.0 Maximum 8318 Mean 3136 Median 2760