Graph

Red-winged Blackbird
(Agelaius phoeniceus)

Listing of the threshold values that appear on the graph
Population below lowest acceptable level		Goal
20.734		27.645

Listing of the individual data points that make up the graph
Year	Annual Index	Lower limit	Upper limit
1970	29.2	25.8	33.6
1971	27.7	24.9	31.2
1972	27.1	25	29.6
1973	27.5	25.4	30
1974	27.7	25.4	30.3
1975	28.8	26.7	31.4
1976	29	26.7	31.7
1977	29.9	27.5	32.6
1978	28.6	26.5	31.1
1979	27	24.8	29.4
1980	26	24.1	28.2
1981	26.2	24.3	28.3
1982	25.8	23.9	28.1
1983	26	24	28.3
1984	25.4	23.3	27.8
1985	24.8	23	26.8
1986	25	23	27.3
1987	25.3	23.4	27.5
1988	25.1	23.3	27.3
1989	23.9	22.3	25.7
1990	23.8	22.2	25.5
1991	23.1	21.7	24.8
1992	22.6	21.2	24
1993	22.4	21.1	23.9
1994	22	20.8	23.3
1995	21.5	20.3	22.7
1996	20.3	19.1	21.5
1997	19.7	18.6	20.9
1998	19.2	18.1	20.3
1999	19.7	18.6	20.9
2000	19.6	18.6	20.8
2001	18.2	17.3	19.2
2002	18.5	17.5	19.6
2003	17	16.1	17.9
2004	17.7	16.7	18.7
2005	18.1	17.1	19.1
2006	18.7	17.7	19.8
2007	19.3	18.2	20.5
2008	20.3	19.2	21.5
2009	20.1	19	21.3
2010	20.1	18.9	21.3
2011	20.3	19.1	21.6
2012	20.6	19.3	21.9
2013	20.6	19.2	22.1
2014	21.8	20.4	23.4
2015	21.9	20.5	23.4
2016	22.6	21.1	24.4

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