Andover (village), New York
Demographics
Table:
Historical population

Census	Pop.	Note	%±

1840	150	—
1850	500	233.3%
1860	374	−25.2%
1880	794	—
1900	954	—
1910	1,136	19.1%
1920	1,132	−0.4%
1930	1,241	9.6%
1940	1,290	3.9%
1950	1,351	4.7%
1960	1,247	−7.7%
1970	1,214	−2.6%
1980	1,120	−7.7%
1990	1,125	0.4%
2000	1,073	−4.6%
2010	1,042	−2.9%
2016 (est.)	1,000	[1]	−4.0%
U.S. Decennial Census[4]

Studying the data table for the 'Demographics' part of 'Andover (village), New York', summarise the highlighted cells in a single sentence and format it within the following JSON object {"answer": "YOUR ANSWER"}.