年齡組別	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
15歲以下	97,426	89,482	88,422	82,516	75,281	69,219	63,890	60,119	56,790	53,350	50,816	48,476	46,021	47,648
15至59歲	212,201	201,100	205,704	195,207	180,942	164,684	151,014	144,635	135,515	126,076	118,507	111,748	106,662	113,801
60歲或以上	187,295	185,043	187,875	188,283	187,099	184,865	180,003	176,553	172,541	169,005	167,358	162,799	158,656	157,751
總計	496,922	475,625	482,001	466,006	443,322	418,768	394,907	381,307	364,846	348,431	336,681	323,023	311,339	319,200