Graph

Great Black-backed Gull
(Larus marinus)

Listing of the threshold values that appear on the graph
Population below lowest acceptable level		Goal
1.966		2.621

Listing of the individual data points that make up the graph
Year	Annual Index	Lower limit	Upper limit
1970	9.5	6.44	15.7
1971	8.66	5.51	14.1
1972	8.92	6.07	14.3
1973	8.72	5.99	14
1974	8.52	5.88	13.7
1975	8.01	5.58	12.5
1976	7.52	5.15	11.5
1977	7.01	4.8	10.7
1978	6.89	4.88	10.8
1979	6.68	4.76	10.2
1980	6.84	4.83	10.5
1981	6.15	4.42	9.33
1982	6.33	4.58	9.85
1983	6.19	4.48	9.31
1984	5.84	4.21	8.63
1985	5.4	4	7.96
1986	5.15	3.75	7.42
1987	5.15	3.74	7.55
1988	4.92	3.63	7.3
1989	4.71	3.41	6.82
1990	4.5	3.28	6.55
1991	4.39	3.27	6.44
1992	4.33	3.27	6.3
1993	3.99	3.02	5.75
1994	3.88	2.86	5.55
1995	3.86	2.91	5.48
1996	3.71	2.79	5.5
1997	3.7	2.77	5.18
1998	3.34	2.4	4.58
1999	3.39	2.58	4.95
2000	3.27	2.42	4.64
2001	3.19	2.3	4.53
2002	3.19	2.38	4.73
2003	3.01	2.17	4.47
2004	3.14	2.38	4.72
2005	2.96	2.22	4.44
2006	2.81	1.98	4.22
2007	2.91	2.13	5.06
2008	2.71	1.96	4.2
2009	2.65	1.85	4.21
2010	2.62	1.83	4.28
2011	2.52	1.68	4.24
2012	2.56	1.77	4.48
2013	2.36	1.49	3.68
2014	2.43	1.62	4.23
2015	2.34	1.52	4.28
2016	2.29	1.41	4

Notes on numeric data: Ex represents 10 to the power of x; For example 1.2345E-2 is equivalent to 0.012345