Collingdale, Pennsylvania
Demographics
Table:
Historical population

Census	Pop.	Note	%±

1900	603	—
1910	1,361	125.7%
1920	3,834	181.7%
1930	7,857	104.9%
1940	8,162	3.9%
1950	8,443	3.4%
1960	10,268	21.6%
1970	10,605	3.3%
1980	9,539	−10.1%
1990	9,175	−3.8%
2000	8,664	−5.6%
2010	8,786	1.4%
2016 (est.)	8,765	[2]	−0.2%
Sources:[4][5][6][7]

With reference to the table that covers 'Collingdale, Pennsylvania' titled 'Demographics', produce a single-sentence summary focused on the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.