Year
|
GW nitrate 1992-2012 (400)
|
GW nitrate 2000-2012 (1242)
|
Rivers nitrate 1992-2012 (1059)
|
Rivers nitrate 2000-2012 (1653)
|
Rivers phosphate 1992-2012 (874)
|
Rivers phosphate 2000-2012 (1470)
|
Lakes phosphorus 1992-2012 (309)
|
Lakes phosphorus 2000-2012 (487)
|
1992
|
17.4
|
|
2.66
|
|
0.133
|
|
0.039
|
|
1993
|
17.4
|
|
2.57
|
|
0.134
|
|
0.039
|
|
1994
|
17.5
|
|
2.51
|
|
0.115
|
|
0.037
|
|
1995
|
18.3
|
|
2.45
|
|
0.119
|
|
0.035
|
|
1996
|
18.6
|
|
2.56
|
|
0.129
|
|
0.032
|
|
1997
|
18.8
|
|
2.49
|
|
0.12
|
|
0.033
|
|
1998
|
19
|
|
2.59
|
|
0.107
|
|
0.032
|
|
1999
|
18.9
|
|
2.41
|
|
0.099
|
|
0.033
|
|
2000
|
18.4
|
19.1
|
2.39
|
2.08
|
0.094
|
0.106
|
0.031
|
0.037
|
2001
|
18.2
|
19.2
|
2.32
|
2.03
|
0.091
|
0.101
|
0.031
|
0.037
|
2002
|
17.7
|
19.0
|
2.25
|
1.97
|
0.092
|
0.103
|
0.033
|
0.038
|
2003
|
18.3
|
19.2
|
2.19
|
1.94
|
0.087
|
0.103
|
0.031
|
0.037
|
2004
|
18.5
|
19.3
|
2.39
|
2.09
|
0.083
|
0.091
|
0.03
|
0.035
|
2005
|
18.8
|
19.9
|
2.23
|
1.99
|
0.086
|
0.092
|
0.029
|
0.035
|
2006
|
18.7
|
20.4
|
2.36
|
2.08
|
0.087
|
0.091
|
0.029
|
0.035
|
2007
|
18.8
|
20.4
|
2.3
|
2.01
|
0.083
|
0.092
|
0.026
|
0.032
|
2008
|
18.4
|
19.7
|
2.18
|
1.91
|
0.069
|
0.08
|
0.029
|
0.035
|
2009
|
18.3
|
19.2
|
2.06
|
1.82
|
0.07
|
0.079
|
0.029
|
0.034
|
2010
|
18.3
|
19.3
|
2.17
|
1.9
|
0.065
|
0.072
|
0.027
|
0.031
|
2011
|
17.7
|
19.0
|
2.09
|
1.82
|
0.061
|
0.07
|
0.027
|
0.031
|
2012
|
17.6
|
19.1
|
2.1
|
1.82
|
0.055
|
0.065
|
0.027
|
0.031
|