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TABLE E24

Aggregate Rates of Return Earned by Pension Plans
with 100 or More Participants
1985-1994

Year1/ Total Plans Single Employer Multiemployer
Total Defined
Benefit
Defined
Contribution
Total Defined
Benefit
Defined
Contribution
Total Defined
Benefit
Defined
Contribution
1985 19.6% 20.1% 18.4% 20.0% 20.6% 18.5% 16.8% 17.0% 12.7%
1986 13.9 14.1 13.3 14.1 14.4 13.4 12.5 12.6 10.3
1987 4.6 4.4 4.8 4.7 4.6 4.8 3.7 3.5 6.4
1988 12.4 12.1 13.1 12.6 12.2 13.2 11.6 11.8 9.5
1989 11.2 12.1 9.4 11.9 13.2 9.7 6.0 6.4 1.8
1990 - 3.5 3.5 3.1 2.8 3.4 6.8 6.7 7.4
1991 17.5 18.8 15.1 17.8 19.6 15.2 14.9 15.2 12.0
1992 8.8 8.3 9.8 8.8 8.0 9.8 9.3 9.4 8.7
1993 10.2 10.5 9.8 10.6 11.1 9.9 7.4 7.5 6.2
1994 2.9 2.2 3.8 2.7 1.8 3.8 4.4 4.5 3.9
Geometric Mean2/
1985-1994 10.3 10.5 10.0 10.5 10.7 10.1 9.3 9.4 7.9
1990-19948.5 8.5 8.3 8.5 8.5 8.3 8.6 8.7 7.6
1992-19947.3 7.0 7.8 7.3 6.9 7.8 7.2 7.3 6.2
Standard Deviation3/
1985-19945.4 5.8 4.7 5.6 6.2 4.8 4.2 4.3 3.3
1990-19945.3 5.9 4.3 5.6 6.4 4.4 3.5 3.6 2.7
1992-19943.2 3.5 2.8 3.4 3.9 2.8 2.0 2.0 1.9

NOTE: Rates of return have been derived directly from tables C4-C11 and from similar published summary tables for prior years. The rate of return formula is the same as that described in Chapter 12 of the 1989 DOL volume entitled "Trends in Pensions," except that the return formula used here refines the treatment of receivables. The receivable line item called "income receivables," which first appeared on the 1988 form, is not deducted from total assets because such assets may produce investment income. Because the Form 5500 does not provide information on the timing of cash flows during the year, a time weighted rate of return cannot be derived. The formula used assumes that all cash flows occur in the middle of the plans' reporting period. The formula makes no adjustment for reporting periods other than one year, which are reported on approximately 3 percent of Form 5500 filings.

1/ The 1994 row, for example, represents all plan years that began in 1994. About 77 percent of these plan years began on January 1, 1994.
2/ Computed by adding one to the aggregate rate of return for each of the n years, taking the product of the sums, and taking the nth root of the product, and subtracting one.
3/ Standard deviation formula uses a denominator definition of N, not N-1.

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