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TABLE F21

Percent Distribution of Vesting Status of Pension Plan Active Participants in Single Employer Plans with 100 or More Participants, 1975-1993
Year	All Plans				Defined Benefit Plans				Defined Contribution Plans
Year	Total	Fully Vested	Partially Vested	Not Vested	Total	Fully Vested	Partially Vested	Not Vested	Total	Fully Vested	Partially Vested	Not Vested
1975	100	39	^1/	61	100	38	^1/	62	100	43	^1/	57
1977	100	47	12	40	100	41	5	53	100	58	24	18
1978	100	47	12	40	100	41	5	53	100	57	25	18
1979	100	48	13	39	100	41	6	53	100	58	26	17
1980	100	47	14	39	100	40	6	54	100	58	25	17
1981	100	48	14	38	100	41	5	54	100	57	26	17
1982	100	49	14	36	100	42	5	53	100	59	25	17
1983	100	54	14	33	100	43	6	51	100	64	22	14
1984	100	56	14	30	100	44	6	50	100	67	20	13
1985	100	57	14	29	100	43	6	51	100	68	20	12
1986	100	58	14	28	100	44	6	50	100	70	19	11
1987	100	58	13	28	100	46	6	49	100	68	20	12
1988	100	60	12	28	100	50	4	46	100	68	19	13
1989	100	67	10	24	100	61	2	37	100	71	15	14
1990	100	68	9	23	100	62	2	36	100	72	14	14
1991	100	68	10	22	100	65	2	33	100	70	15	15
1992	100	69	10	21	100	67	2	32	100	70	15	15
1993	100	70	10	19	100	69	2	29	100	71	15	14

^1/The percentage of partially vested participants is not available for 1975. These participants are included in the not vested category.

NOTE: Data not available for 1976.

SOURCE: Form 5500 series reports filed with the Internal Revenue Service for 1975-1993 plan years.