Hempfield Township, Westmoreland County, Pennsylvania
Demographics
Table:
Historical population

Census	Pop.	Note	%±

1970	36,208	—
1980	43,396	19.9%
1990	42,609	−1.8%
2000	40,721	−4.4%
2010	43,241	6.2%
2016 (est.)	41,335	[3]	−4.4%
U.S. Decennial Census[4]

Based on the following table concerning the 'Demographics' part of 'Hempfield Township, Westmoreland County, Pennsylvania', give a one-line statement limited to the highlighted cells and provide it inside the JSON object {"answer": "YOUR ANSWER"}.