Santa, Ilocos Sur
Demographics
Table:
Population census of Santa
Year	Pop.	±% p.a.
1903	8,063	—
1918	9,748	+1.27%
1939	10,174	+0.20%
1948	8,917	−1.45%
1960	10,214	+1.14%
1970	10,859	+0.61%
1975	11,799	+1.68%
1980	11,359	−0.76%
1990	12,570	+1.02%
1995	12,801	+0.34%
2000	13,918	+1.81%
2007	14,059	+0.14%
2010	15,106	+2.65%
2015	15,340	+0.29%
Source: Philippine Statistics Authority[10][11][12][13]

With reference to the tabular data covering the 'Demographics' part of 'Santa, Ilocos Sur', summarise the highlighted cells in a single sentence and return it as JSON: {"answer": "YOUR ANSWER"}.