Graph

Hoary Redpoll
(Acanthis hornemanni)

Additional information on: Christmas Bird Count (CBC)

Listing of the threshold values that appear on the graph
Population below lowest acceptable level		Goal
2.192		7.032

Listing of the individual data points that make up the graph
Year	Annual index	Lower limit	Upper limit
1970	2.24	0.489	27.3
1971	4.45	1.34	28.2
1972	2.54	0.699	23.6
1973	2.85	0.741	24.8
1974	2.18	0.532	21.1
1975	2.92	0.851	21
1976	3.1	0.86	28.6
1977	2.56	1.01	8.85
1978	2.13	0.635	12
1979	1.82	0.478	12
1980	2.33	0.741	14
1981	3.33	1.09	29.1
1982	2.49	0.686	16.8
1983	3.01	0.81	28.7
1984	3.32	1.27	19.3
1985	3.01	1.07	15.3
1986	2.99	1.05	15.5
1987	3.78	1.1	26.3
1988	3.3	1.03	21
1989	2.3	0.886	8.03
1990	2.33	0.822	9.43
1991	2.64	1.03	9.3
1992	2.18	0.658	8.76
1993	4.16	1.8	15.9
1994	2.08	0.575	8.65
1995	4.23	1.51	26.2
1996	3.24	1.06	14.1
1997	4.55	1.45	30.7
1998	4.35	1.61	20.2
1999	4.9	1.98	19.6
2000	2.72	0.86	10.2
2001	3.93	1.57	13.6
2002	3.22	1	12.3
2003	4.51	1.59	18.1
2004	5.33	1.73	27.8
2005	3.86	1.09	18
2006	6.3	2.17	38.1
2007	7.64	2.24	70.4
2008	5.98	1.84	31.9
2009	6.23	1.87	36.6
2010	5.31	1.51	27.5
2011	9.35	2.98	68.5
2012	9.6	3.28	57.4
2013	6.85	1.81	42.9
2014	9.38	2.56	66.7
2015	8.44	2.64	56.3
2016	13.1	3	142

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