Year	Baltic Sea (123)	Black Sea (101)	Celtic Seas, Bay of Biscay, Iberian Coast (91)	Greater North Sea (98)	Mediterranean Sea (126)
1992	2.3	5.56	2.83	3.31	4.16
1993	2.15	6.89	2.53	3.51	3.65
1994	2.22	5.18	2.26	3.11	3.57
1995	2.07	4.32	2.23	3.13	3.56
1996	2.34	3.74	2.16	3.89	3.54
1997	2.19	3.63	2.47	3.46	3.36
1998	1.92	3.33	2.56	2.93	3.5
1999	1.95	2.74	2.56	2.93	3.53
2000	1.92	3.14	2.34	2.78	3.59
2001	1.98	3.16	2.18	2.7	3.63
2002	1.92	3.13	2	2.53	3.47
2003	2	3.44	1.8	2.41	2.61
2004	1.82	3.18	1.66	2.13	2.33
2005	1.86	3.07	1.68	1.96	2.13
2006	1.95	3.06	1.51	1.93	2.04
2007	1.75	3.06	1.67	2.1	2.18
2008	1.78	2.35	1.35	2.05	2.14
2009	1.78	2.44	1.44	2.2	2.13
2010	1.75	2.3	1.42	1.97	1.58
2011	1.73	2.2	1.46	1.91	1.66
2012	1.71	2.18	1.46	1.78	1.64