Country	Period	River Stations	Very negative	Marginally negative	No change	Marginally positive	Very positive	Sen slope (mg O2/l)	Sen slope (%)
Europe	1992-2018	506	282	34	160	5	25	-0.08	-1.8
Albania	1992-2018	4	0	0	0	0	4	0.24	9.5
Austria	1992-2018	44	21	3	20	0	0	-0.04	-2.0
Belgium	1992-2018	26	8	1	11	0	6	-0.04	-0.7
Bulgaria	1992-2018	58	41	2	15	0	0	-0.16	-2.7
Czechia	1992-2018	19	13	1	4	1	0	-0.07	-1.6
Estonia	1992-2018	38	8	3	20	1	6	-0.01	-0.1
Finland	1992-2018	5	4	0	1	0	0	-0.02	-1.2
France	1992-2018	156	118	16	19	0	3	-0.09	-3.0
Ireland	1992-2018	3	3	0	0	0	0	-0.05	-3.1
Latvia	1992-2018	10	7	1	2	0	0	-0.01	-0.9
Lithuania	1992-2018	23	13	0	5	2	3	-0.04	-1.1
North Macedonia	1992-2018	1	1	0	0	0	0	-0.13	-2.6
Slovakia	1992-2018	8	7	1	0	0	0	-0.08	-2.1
Slovenia	1992-2018	8	7	1	0	0	0	-0.15	-4.1
Spain	1992-2018	79	16	1	59	1	2	-0.12	-0.7
United Kingdom	1992-2018	23	15	4	3	0	1	-0.02	-1.3
Europe	2000-2018	977	318	56	455	28	120	-0.04	-0.1
Albania	2000-2018	5	0	0	2	0	3	0.09	6.7
Austria	2000-2018	46	1	4	36	1	4	0.0	0.9
Belgium	2000-2018	36	10	1	13	1	11	0.0	0.9
Bulgaria	2000-2018	75	27	4	39	2	3	-0.1	-1.9
Croatia	2000-2018	22	8	1	13	0	0	-0.04	-1.9
Cyprus	2000-2018	4	2	0	1	0	1	-0.01	-1.6
Czechia	2000-2018	19	10	2	7	0	0	-0.05	-1.6
Estonia	2000-2018	40	3	3	20	4	10	0.0	0.2
Finland	2000-2018	5	2	0	3	0	0	-0.05	-2.6
France	2000-2018	211	128	17	61	3	2	-0.07	-3.7
Ireland	2000-2018	51	16	4	29	2	0	-0.02	-1.4
Latvia	2000-2018	14	8	2	4	0	0	-0.04	-2.2
Lithuania	2000-2018	23	8	1	12	0	2	-0.03	-1.1
North Macedonia	2000-2018	4	2	0	2	0	0	-0.11	-2.7
Poland	2000-2018	68	22	3	40	0	3	-0.12	-1.3
Romania	2000-2018	101	24	9	63	3	2	-0.07	-0.9
Serbia	2000-2018	34	18	1	13	0	2	-0.04	-1.2
Slovakia	2000-2018	8	1	1	6	0	0	-0.05	-1.6
Slovenia	2000-2018	10	8	1	1	0	0	-0.16	-5.6
Spain	2000-2018	175	12	1	77	12	73	0.04	9.5
United Kingdom	2000-2018	25	8	1	12	0	4	-0.01	-0.2