Table 5. Percentage of fatal pharyngeal entrapment of fish.

Total number of investigated harbour porpoises from the coasts of Schleswig-Holstein from 1990 to 2019 as well as the number of all carcasses coming from the North Sea coast, the number of animals having fatal pharyngeal entrapment of fish and of these, the total percentage of animals derived from the North Sea coast.

Stranding year	Total number	North Sea	CasesNorth Sea	North Sea (%)
1990	16	6	2	33.3
1991	43	21	6	28.6
1992	26	19	5	26.3
1993	34	27	3	11.1
1994	38	28	3	10.7
1995	32	21	6	28.6
1996	28	15	0	0
1997	22	17	0	0
1998	48	40	2	5
1999	17	13	0	0
2000	20	16	1	6.3
2001	29	23	0	0
2002	22	14	1	7.1
2003	27	25	0	0
2004	38	28	0	0
2005	31	27	0	0
2006	46	39	0	0
2007	37	21	1	4.8
2008	48	19	1	5.3
2009	32	19	1	5.3
2010	21	9	1	11.1
2011	28	8	0	0
2012	30	22	0	0
2013	29	15	0	0
2014	27	17	0	0
2015	49	23	1	4.3
2016	86	37	9	24.3
2017	193	95	2	2.1
2018	206	72	0	0
2019	230	84	0	0
in total	1,533	820	45	6.3