Table 2. Number of persons and proportions of the population under 65 years of age, 65 years of age and over, and 75 years of age and over. Selected years 1960-2000¹.

Year	All ages	Under 65 years	65 years and over	75 years and over
	Number of persons as of July 1 in thousands
1960	188,943	171,796	17,147	5,775
1965	203,032	184,080	18,952	6,879
1970	214,024	193,343	20,681	8,133
1972	218,849	197,239	21,610	8,624
1975	224,956	201,656	23,300	9,307
1980	236,417	210,096	26,321	10,573
1981	238,588	211,716	26,872	10,881
1982	241,058	213,444	27,614	11,312
Projections
1984	245,495	216,724	28,771	11,949
1985	247,727	218,321	29,406	12,291
1987	252,174	221,407	30,767	13,012
1990	258,670	226,011	32,659	14,117
1995	268,590	233,513	35,077	16,039
2000	227,353	241,015	36,338	18,080
	Percent distribution
1960	100.0	90.9	9.1	3.1
1965	100.0	90.7	9.3	3.4
1970	100.0	90.3	9.7	3.8
1972	100.0	90.1	9.9	3.9
1975	100.0	89.6	10.4	4.1
1980	100.0	88.9	11.1	4.5
1981	100.0	88.7	11.3	4.6
1982	100.0	88.5	11.5	4.7
Projections
1984	100.0	88.3	11.7	4.9
1985	100.0	88.1	11.9	5.0
1987	100.0	87.8	12.2	5.2
1990	100.0	87.4	12.6	5.5
1995	100.0	86.9	13.1	6.0
2000	100.0	86.9	13.1	6.5

¹Derived from data in Wilkin (1983). Alternative II (intermediate) assumptions for population growth were used. Social security aged population differs slightly in concept from the national health expenditure population concept. See Gibson et al. (1983) and Wilkin (1983).