Graph

Bobolink
(Dolichonyx oryzivorus)

Listing of the individual data points that make up the graph
Year	Annual Index	Lower limit	Upper limit
1970	13.6	11	17.3
1971	13.2	10.9	16.5
1972	12.5	10.2	15.4
1973	12.1	10	14.8
1974	11.7	9.75	14.3
1975	11.2	9.41	13.7
1976	10.9	9.15	13.1
1977	10.3	8.75	12.4
1978	10	8.48	11.9
1979	9.67	8.26	11.4
1980	9.34	8.06	11.1
1981	9.22	7.98	11
1982	8.63	7.41	10
1983	8.42	7.37	9.88
1984	8.15	7.13	9.58
1985	7.69	6.77	9
1986	7.33	6.45	8.44
1987	7.12	6.31	8.16
1988	6.83	6.08	7.86
1989	6.55	5.81	7.5
1990	6.35	5.67	7.23
1991	6.16	5.52	7.06
1992	5.79	5.15	6.55
1993	5.59	4.99	6.29
1994	5.29	4.75	5.9
1995	5.2	4.66	5.87
1996	4.95	4.45	5.55
1997	4.64	4.11	5.17
1998	4.62	4.14	5.18
1999	4.48	4.02	5.07
2000	4.32	3.86	4.88
2001	4.09	3.63	4.6
2002	3.89	3.45	4.38
2003	3.76	3.32	4.24
2004	3.57	3.12	4.01
2005	3.57	3.17	4.09
2006	3.32	2.91	3.75
2007	3.4	3.02	3.93
2008	3.13	2.75	3.56
2009	3.08	2.72	3.54
2010	2.91	2.52	3.33
2011	2.91	2.55	3.37
2012	2.81	2.45	3.28
2013	2.67	2.3	3.11
2014	2.59	2.24	3.04
2015	2.49	2.15	2.92
2016	2.41	2.07	2.85

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