Short-Range Actuarial Projections of the Old-Age, Survivors, and Disability Insurance Program, 2001
Actuarial Study No. 115
Chris Motsiopoulos and Tim Zayatz, A.S.A.
 Contents Glossary




 

IV. TRUST FUND INCOME AND OUTGO

Table IV.17.—Comparison of Income Rates and Cost Rates of the OASI, DI, and Combined Trust Funds
(Calendar years 1975-2010)
[As a percentage of taxable payroll]
Year
OASI Trust Fund
DI Trust Fund
Total
  Income rate
  Cost rate
  Balance
  Income rate
  Cost rate
  Balance
  Income rate
  Cost rate
  Balance
1975
8.77
9.29
-0.51
1.16
1.36
-0.19
9.94
10.64
-0.71
1976
8.80
9.41
-.61
1.16
1.44
-.28
9.97
10.85
-.89
1977
8.80
9.44
-.64
1.17
1.50
-.33
9.96
10.94
-.97
1978
8.59
9.25
-.66
1.57
1.45
.12
10.16
10.70
-.54
1979
8.70
8.87
-.17
1.51
1.35
.16
10.21
10.22
-.02
1980
9.07
9.33
-.26
1.13
1.38
-.25
10.21
10.71
-.50
1981
9.44
9.96
-.52
1.31
1.39
-.08
10.76
11.35
-.59
1982
9.19
10.59
-1.40
1.66
1.34
.32
10.85
11.93
-1.08
1983
9.91
10.26
-.35
1.33
1.22
.11
11.24
11.48
-.24
1984
10.58
10.06
.52
1.01
1.15
-.14
11.59
11.21
.38
1985
10.71
9.92
.79
1.07
1.13
-.06
11.79
11.05
.73
1986
10.59
9.81
.77
1.01
1.11
-.10
11.60
10.93
.67
1987
10.57
9.60
.97
1.00
1.10
-.10
11.56
10.69
.87
1988
11.22
9.57
1.65
1.06
1.08
-.01
12.28
10.65
1.64
1989
11.17
9.51
1.66
1.06
1.06
(1)
12.23
10.57
1.66
1990
11.32
9.66
1.66
1.17
1.09
.09
12.49
10.74
1.75
1991
11.44
10.15
1.29
1.21
1.18
.03
12.65
11.33
1.32
1992
11.43
10.27
1.16
1.21
1.27
-.06
12.64
11.54
1.10
1993
11.40
10.37
1.03
1.21
1.35
-.14
12.61
11.73
.88
1994
10.70
10.22
.48
1.89
1.40
.49
12.59
11.62
.97
1995
10.70
10.22
.48
1.88
1.44
.44
12.59
11.67
.92
1996
10.73
10.06
.68
1.89
1.48
.41
12.62
11.53
1.09
1997
10.93
9.83
1.09
1.71
1.44
.28
12.64
11.27
1.37
1998
10.96
9.49
1.47
1.72
1.43
.29
12.68
10.91
1.76
1999
10.99
9.13
1.86
1.72
1.43
.29
12.71
10.56
2.15
2000
10.89
9.04
1.86
1.80
1.43
.37
12.69
10.47
2.22
2001
10.90
9.04
1.86
1.82
1.45
.37
12.72
10.50
2.22
2002
10.90
8.94
1.96
1.82
1.48
.34
12.72
10.42
2.30
2003
10.91
8.91
2.00
1.82
1.53
.29
12.73
10.44
2.29
2004
10.92
8.91
2.01
1.82
1.58
.24
12.74
10.49
2.25
2005
10.93
8.92
2.00
1.82
1.64
.18
12.75
10.56
2.19
2006
10.93
8.95
1.98
1.82
1.70
.12
12.75
10.65
2.11
2007
10.94
9.02
1.92
1.82
1.76
.06
12.76
10.78
1.99
2008
10.95
9.11
1.84
1.82
1.82
(1)
12.78
10.93
1.84
2009
10.96
9.25
1.71
1.83
1.87
-.05
12.79
11.13
1.66
2010
10.98
9.42
1.56
1.83
1.92
-.10
12.81
11.34
1.46

1 Between -0.005 and 0.005 percent of taxable payroll.

Sources:

· Effective taxable payroll from econometric model in the Office of the Chief Actuary.

· Income rate computed as sum of (a) employee-employer payroll tax rate, and (b) income tax revenue plus payments from the general fund of the Treasury divided by effective taxable payroll.

· Cost rate computed as total disbursements divided by effective taxable payroll.

Note: Future estimates based on 2001 Trustees Report intermediate set of assumptions. See tables V.A13 and V.B13 for low-cost and high-cost alternatives, respectively.

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December 26, 2001