Friendship, Wisconsin
Demographics
Table:
Historical population

Census	Pop.	%±

1870	76	—

1880	137	80.3%

1890	156	13.9%

1910	276	—

1920	442	60.1%

1930	438	−0.9%

1940	453	3.4%

1950	566	24.9%

1960	560	−1.1%

1970	641	14.5%

1980	744	16.1%

1990	728	−2.2%

2000	698	−4.1%

2010	725	3.9%

Est. 2017	653	−9.9%

U.S. Decennial Census

Examining the following table concerning 'Friendship, Wisconsin' titled 'Demographics', draft a brief sentence that explains what the highlighted cells show and return it as JSON: {"answer": "YOUR ANSWER"}.