Year
|
GW nitrate 1992-2018 (542)
|
GW nitrate 2000-2018 (1077)
|
Rivers nitrate 1992-2018 (966)
|
Rivers nitrate 2000-2018 (1390)
|
Rivers phosphate 1992-2018 (742)
|
Rivers phosphate 2000-2018 (1083)
|
Lakes phosphorus 1992-2018 (262)
|
Lakes phosphorus 2000-2018 (341)
|
1992
|
19.3
|
|
2.11
|
|
0.115
|
|
0.03
|
|
1993
|
19.3
|
|
2.05
|
|
0.112
|
|
0.031
|
|
1994
|
19.4
|
|
1.99
|
|
0.096
|
|
0.03
|
|
1995
|
19.8
|
|
1.95
|
|
0.095
|
|
0.029
|
|
1996
|
19.6
|
|
2.0
|
|
0.103
|
|
0.027
|
|
1997
|
20.3
|
|
2.05
|
|
0.096
|
|
0.027
|
|
1998
|
20.1
|
|
2.08
|
|
0.087
|
|
0.027
|
|
1999
|
20.1
|
|
1.93
|
|
0.083
|
|
0.028
|
|
2000
|
20.4
|
20.7
|
1.96
|
1.83
|
0.078
|
0.083
|
0.027
|
0.028
|
2001
|
20.1
|
20.7
|
1.97
|
1.84
|
0.077
|
0.083
|
0.026
|
0.027
|
2002
|
19.6
|
20.2
|
1.93
|
1.81
|
0.076
|
0.084
|
0.027
|
0.029
|
2003
|
19.8
|
20.4
|
1.87
|
1.76
|
0.075
|
0.081
|
0.028
|
0.029
|
2004
|
19.9
|
20.2
|
2.01
|
1.88
|
0.073
|
0.074
|
0.025
|
0.027
|
2005
|
20.0
|
20.7
|
1.92
|
1.82
|
0.07
|
0.072
|
0.026
|
0.027
|
2006
|
19.8
|
20.7
|
2.02
|
1.9
|
0.073
|
0.077
|
0.025
|
0.027
|
2007
|
20.3
|
20.8
|
1.95
|
1.83
|
0.073
|
0.081
|
0.022
|
0.025
|
2008
|
20.1
|
20.6
|
1.89
|
1.77
|
0.062
|
0.069
|
0.025
|
0.027
|
2009
|
20.2
|
20.3
|
1.8
|
1.69
|
0.061
|
0.067
|
0.027
|
0.028
|
2010
|
20.1
|
20.6
|
1.86
|
1.75
|
0.06
|
0.064
|
0.025
|
0.027
|
2011
|
19.8
|
20.1
|
1.75
|
1.64
|
0.053
|
0.056
|
0.022
|
0.024
|
2012
|
19.6
|
20.0
|
1.73
|
1.64
|
0.051
|
0.057
|
0.023
|
0.024
|
2013
|
20.2
|
20.6
|
1.87
|
1.76
|
0.052
|
0.054
|
0.023
|
0.024
|
2014
|
20.3
|
20.7
|
1.78
|
1.68
|
0.052
|
0.056
|
0.023
|
0.024
|
2015
|
20.4
|
21.0
|
1.75
|
1.64
|
0.052
|
0.055
|
0.02
|
0.022
|
2016
|
20.4
|
21.4
|
1.91
|
1.77
|
0.054
|
0.056
|
0.02
|
0.022
|
2017
|
20.2
|
20.8
|
1.89
|
1.76
|
0.057
|
0.059
|
0.02
|
0.022
|
2018
|
21.4
|
21.5
|
1.84
|
1.73
|
0.058
|
0.058
|
0.021
|
0.023
|