Year
|
BOD5 1992-2015 (543)
|
BOD5 2000-2015 (1160)
|
Ammonium 1992-2015 (851)
|
Ammonium 2000-2015 (1340)
|
1992
|
3.9
|
|
382
|
|
1993
|
3.7
|
|
389
|
|
1994
|
3.5
|
|
337
|
|
1995
|
3.3
|
|
301
|
|
1996
|
3.3
|
|
333
|
|
1997
|
3.1
|
|
276
|
|
1998
|
3.0
|
|
225
|
|
1999
|
2.9
|
|
200
|
|
2000
|
2.9
|
3.0
|
194
|
266
|
2001
|
2.8
|
2.9
|
167
|
246
|
2002
|
2.6
|
2.7
|
170
|
235
|
2003
|
2.4
|
2.6
|
183
|
240
|
2004
|
2.3
|
2.4
|
153
|
202
|
2005
|
2.3
|
2.4
|
140
|
174
|
2006
|
2.2
|
2.4
|
152
|
171
|
2007
|
2.2
|
2.4
|
143
|
168
|
2008
|
2.1
|
2.2
|
113
|
148
|
2009
|
2.1
|
2.2
|
115
|
149
|
2010
|
1.9
|
2.1
|
103
|
126
|
2011
|
1.8
|
2.1
|
106
|
131
|
2012
|
2.1
|
2.3
|
108
|
145
|
2013
|
2.0
|
2.1
|
85
|
112
|
2014
|
1.9
|
2.1
|
78
|
96
|
2015
|
2.0
|
2.1
|
71
|
89
|