Graph

Common Redpoll
(Acanthis flammea)

Additional information on: Christmas Bird Count (CBC)

Listing of the threshold values that appear on the graph
Population below lowest acceptable level		Goal
31		139.792

Listing of the individual data points that make up the graph
Year	Annual index	Lower limit	Upper limit
1970	37.2	11.2	321
1971	111	40.6	629
1972	53.4	17.2	439
1973	67.1	23.7	436
1974	32.3	13.1	165
1975	94.5	36.6	483
1976	54.6	21.3	354
1977	97.3	39.9	450
1978	37.9	16.7	132
1979	16.8	7.41	57.5
1980	70.7	33.3	233
1981	93.7	49.1	249
1982	19.4	9.24	53.1
1983	27.6	12.8	121
1984	47.2	23.7	152
1985	77.2	41.6	197
1986	59.9	35.3	127
1987	42.8	22.1	126
1988	32.4	16.6	83
1989	81.8	40.5	298
1990	41.8	22.8	115
1991	64.4	38.8	138
1992	42.7	22.4	116
1993	96.3	58.6	194
1994	30.5	14.6	93.5
1995	96.5	55.5	201
1996	48.8	25.1	133
1997	68.2	43.3	141
1998	47.7	26.6	100
1999	139	84.5	289
2000	30.7	16.3	70.6
2001	148	92.9	288
2002	32.2	16.3	74
2003	147	89.5	273
2004	111	69	216
2005	43.5	22.5	123
2006	103	61.8	194
2007	107	68.6	199
2008	108	57.1	298
2009	87.7	43.9	522
2010	61.4	33.8	151
2011	176	99.8	441
2012	211	140	371
2013	51.1	21.3	157
2014	123	66.6	334
2015	188	112	512
2016	79.5	37.3	251

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