Year
|
BOD5 1992-2018 (506)
|
BOD5 2000-2018 (977)
|
Ammonium 1992-2018 (693)
|
Ammonium 2000-2018 (1055)
|
1992
|
4.35
|
|
478
|
|
1993
|
4.3
|
|
496
|
|
1994
|
3.74
|
|
428
|
|
1995
|
3.7
|
|
417
|
|
1996
|
3.67
|
|
478
|
|
1997
|
3.49
|
|
391
|
|
1998
|
3.12
|
|
317
|
|
1999
|
3.24
|
|
256
|
|
2000
|
3.13
|
3.28
|
244
|
346
|
2001
|
2.84
|
2.92
|
248
|
349
|
2002
|
2.97
|
3.02
|
258
|
357
|
2003
|
2.61
|
2.83
|
243
|
344
|
2004
|
2.5
|
2.61
|
213
|
292
|
2005
|
2.41
|
2.55
|
226
|
280
|
2006
|
2.42
|
2.58
|
207
|
262
|
2007
|
2.43
|
2.56
|
214
|
278
|
2008
|
2.22
|
2.42
|
154
|
235
|
2009
|
2.22
|
2.38
|
149
|
217
|
2010
|
2.04
|
2.28
|
129
|
184
|
2011
|
1.97
|
2.24
|
127
|
182
|
2012
|
2.13
|
2.39
|
110
|
183
|
2013
|
2.11
|
2.39
|
99
|
153
|
2014
|
2.09
|
2.33
|
90
|
152
|
2015
|
2.34
|
2.52
|
83
|
130
|
2016
|
2.24
|
2.46
|
88
|
135
|
2017
|
2.31
|
2.44
|
110
|
146
|
2018
|
2.2
|
2.35
|
105
|
147
|