２　高齢化率の推計

区分	Ｓ50	Ｓ55	Ｓ60	Ｈ２	Ｈ12	Ｈ17	Ｈ22	Ｈ27
前期高齢化率	4.8%	5.4%	6.4%	7.3%	10.7%	12.4%	12.9%	14.5%
後期高齢化率	1.9%	2.6%	3.5%	4.6%	7.3%	10.1%	12.6%	14.8%
計	6.7%	8.1%	9.9%	12.0%	18.1%	22.5%	25.4%	29.3%