Year	In (t/y)	Out (t/y)	Balance (t/y)	Year	In (t/y)	Out (t/y)	Balance (t/y)
		TP				NO₃
2005	0.8	1.2	−0.4	2005	19.4	3.3	16.1
2004	1	0.4	0.9	2004	157	8	149
2003	3.9	0.8	3.1	2003	83.1	50.9	32.2
2002	0.9	1.2	−0.3	2002	56.1	13	43.1
		TDP				NH₄
2005	0.2	0.2	0	2005	10.1	7.2	2.9
2004	0.4	0.2	0.2	2004	35	0.3	34.7
2003	0.4	0.2	0.2	2003	16.9	3.4	13.5
2002	0.5	0.2	0.3	2002	9.8	3.3	6.5
		TN				SO4
2005	38.1	27.3	10.8	2005	817	956	−139
2004	248	19	229	2004	3960	134	3826
2003	95.8	68.5	27.3	2003	10898	1848	9050
2002	78.9	31	47.9	2002	1925	1763	162
		TDN				CaCO₃
2005	34.7	21.6	13.1	2005	1409	577	832
2004	227	12	215	2004	2877	972	1905
2003	106.3	63.6	42.7	2003	2147	757	1390
2002	67.2	22.4	44.8	2002	2178	793	1385