Graph

Hoary Redpoll
(Acanthis hornemanni)

Additional information on: Christmas Bird Count (CBC)

Listing of the individual data points that make up the graph
Year	Annual index	Lower limit	Upper limit
1970	1.79	0.464	20.5
1971	3.44	1.11	21.2
1972	2	0.601	17.7
1973	2.27	0.674	18.6
1974	1.75	0.499	15.8
1975	2.3	0.732	15.8
1976	2.42	0.722	21.4
1977	2.01	0.833	6.72
1978	1.7	0.571	9.08
1979	1.45	0.428	9.01
1980	1.84	0.647	10.5
1981	2.58	0.891	21.9
1982	1.95	0.592	12.7
1983	2.32	0.678	21.5
1984	2.68	1.12	14.6
1985	2.37	0.912	11.5
1986	2.32	0.863	11.7
1987	2.91	0.889	19.7
1988	2.54	0.835	15.7
1989	1.8	0.741	6.06
1990	1.82	0.676	7.12
1991	2.11	0.899	7.09
1992	1.7	0.564	6.61
1993	3.2	1.42	12
1994	1.62	0.504	6.52
1995	3.27	1.23	19.7
1996	2.49	0.864	10.6
1997	3.49	1.17	23.1
1998	3.33	1.26	15.2
1999	3.76	1.58	14.8
2000	2.09	0.702	7.71
2001	3.01	1.25	10.2
2002	2.47	0.817	9.24
2003	3.46	1.27	13.6
2004	4.07	1.37	20.8
2005	2.94	0.865	13.5
2006	4.84	1.74	28.6
2007	5.78	1.75	52.7
2008	4.56	1.47	23.9
2009	4.73	1.46	27.4
2010	4.03	1.2	20.6
2011	7.07	2.29	51.3
2012	7.36	2.65	43
2013	5.18	1.42	32.1
2014	7.09	1.99	49.9
2015	6.42	2.07	42.2
2016	9.84	2.29	106

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