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Monthly and Annual Mean Water Levels in Metres From 1985 Annual Extremes
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Means Daily Maximum Daily Minimum
1985 106.50 106.39 106.41 106.79 107.19 106.23 106.31 106.12 106.01 106.06 106.27 106.46 106.40 108.40 105.88
1986 106.51 106.43 106.44 106.74 106.40 106.32 106.09 106.16 106.12 106.33 106.38 106.42 106.36 107.02 105.80
1987 106.54 106.46 106.38 106.34 106.10 105.93 105.97 105.91 105.74 105.84 106.29 106.39 106.16 106.64 105.66
1988 106.45 106.49 106.43 106.79 106.50 106.18 106.01 106.25 106.27 106.41 106.62 106.41 106.40 107.05 105.89
1989 106.50 106.46 106.46 106.38 106.63 106.63 106.20 105.95 105.85 105.72 --- 106.52 106.30 107.20 105.62
1990 106.52 106.46 106.45 106.32 106.48 106.32 106.32 106.10 106.11 106.41 106.42 106.65 106.38 107.21 105.97
1991 106.55 106.50 106.46 107.12 106.44 106.18 105.89 105.77 105.95 106.13 106.33 106.50 106.32 107.50 105.69
1992 106.52 106.51 106.50 106.57 106.53 106.15 106.10 105.96 106.14 106.24 106.42 106.42 106.34 107.36 105.80
1993 106.48 106.48 106.38 106.31 106.33 106.20 105.98 105.82 105.91 106.28 106.29 106.43 106.24 106.61 105.71
1994 106.50 106.52 106.47 106.34 106.29 106.29 106.29 106.23 106.13 106.24 106.25 106.35 106.32 106.60 105.90
1995 106.46 106.45 106.42 106.18 106.62 106.41 106.08 106.02 105.79 105.96 106.34 106.38 106.26 107.27 105.70
1996 106.44 106.46 106.46 106.61 107.36 106.30 106.30 106.29 106.06 106.11 106.26 106.43 106.42 107.88 105.93
1997 106.49 106.48 106.43 106.80 107.36 106.32 106.36 105.88 106.08 106.22 106.30 106.36 106.42 107.79 105.81
1998 106.41 106.43 106.42 107.04 106.13 106.11 106.05 105.84 105.90 105.93 106.00 106.37 106.22 107.79 105.73
1999 106.48 106.45 106.45 106.43 105.99 106.29 106.30 106.04 105.92 106.36 106.43 106.53 106.30 106.78 105.74
2000 106.43 106.52 106.51 106.38 106.37 106.37 106.22 106.32 106.11 106.07 106.21 106.43 106.33 106.66 105.86
2001 106.44 106.46 106.44 106.51 106.47 106.36 106.11 105.85 106.01 106.61 106.58 106.57 106.37 107.01 105.76
2002 106.35 106.42 106.42 107.13 106.90 106.70 106.35 106.14 106.01 106.03 106.07 106.25 106.40 108.32 105.86
2003 106.45 106.44 106.44 106.39 106.40 106.35 106.32 106.32 106.19 106.42 106.52 106.39 106.39 106.94 106.13
2004 106.45 106.44 106.44 106.58 106.89 106.33 106.52 106.14 106.14 106.12 106.23 106.49 106.40 107.44 105.90
2005 106.50 106.50 106.48 106.82 106.41 106.35 106.13 105.99 105.91 106.09 106.28 --- 106.32 107.27 105.76
2006 106.40 106.46 106.49 107.12 106.42 106.34 106.18 106.20 106.13 106.45 106.46 106.55 106.44 107.63 105.92
2007 106.53 106.47 106.48 106.47 106.34 106.47 106.34 106.04 105.91 105.80 106.01 106.42 106.27 106.77 105.75
2008 106.46 106.50 106.49 106.90 106.85 106.47 106.47 106.43 106.35 106.29 106.36 106.41 106.50 107.49 106.25
2009 106.51 106.51 106.48 106.96 106.92 106.40 106.43 106.39 106.23 106.36 106.42 106.38 106.50 107.73 106.01
2010 106.51 106.52 106.47 106.34 106.14 106.04 105.94 105.88 106.07 106.36 106.37 106.51 106.26 106.79 105.76
2011 106.54 106.53 106.51 106.60 106.87 106.46 106.40 106.13 105.98 106.04 106.29 106.38 106.39 107.57 105.85
2012 106.52 106.61 106.84 106.47 106.27 106.19 105.93 105.92 105.98 106.23 106.45 106.41 106.32 107.59 105.84
2013 106.54 106.54 106.50 106.76 107.55 106.61 106.17 106.06 106.15 106.27 106.53 106.43 106.51 107.96 105.92
2014 106.51 106.54 106.56 106.60 107.47 106.35 106.35 106.25 106.39 106.61 106.52 106.38 106.54 108.01 106.15
2015 106.60 106.59 106.61 106.79 106.52 106.29 106.15 106.10 106.09 106.04 106.27 106.50 106.38 107.37 105.97
2016 106.64 106.55 106.78 107.09 106.63 106.28 106.14 106.12 --- --- --- --- --- 107.61 106.01
Mean 106.47 106.46 106.44 106.62 106.56 106.30 106.19 106.06 106.02 106.18 106.33 106.44 106.34 107.29 105.82
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Means Daily Maximum Daily Minimum