| 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. |  |  | 
 
| Calendar period | OASI Trust Fund | DI Trust Fund | OASI and DI Trust  Funds, combined | 
|---|---|---|---|
| 246.1 | 190.5 | 238.2 | |
| 249.4 | 192.7 | 241.3 | |
| 261.5 | 201.7 | 252.8 | |
| 261.8 | 200.1 | 252.8 | |
| 268.1 | 202.4 | 258.4 | |
| 269.9 | 201.8 | 259.8 | |
| 281.2 | 208.3 | 270.2 | |
| 280.4 | 204.4 | 268.8 | |
| 286.8 | 205.3 | 274.2 | |
| 287.5 | 202.6 | 274.3 | |
| 298.2 | 207.3 | 283.9 | |
| 296.4 | 202.0 | 281.4 | |
| 302.9 | 202.0 | 286.7 | |
| 302.1 | 197.5 | 285.1 | |
| 312.3 | 200.4 | 294.0 | |
| 308.3 | 193.0 | 289.3 | |
| 313.4 | 191.0 | 293.0 | |
| 312.4 | 185.5 | 291.1 | |
| 323.4 | 187.6 | 300.4 | |
| 320.7 | 180.6 | 296.8 | |
| 326.8 | 178.2 | 301.2 | |
| 326.2 | 172.8 | 299.6 | |
| 337.7 | 174.3 | 309.2 | |
| 334.7 | 167.0 | 305.2 | |
| 341.1 | 164.0 | 309.8 | |
| 340.1 | 158.4 | 307.7 | |
| 351.5 | 159.1 | 317.1 | |
| 347.7 | 151.5 | 312.4 | |
| 353.7 | 147.8 | 316.5 | |
| 351.7 | 141.8 | 313.6 | |
| 362.2 | 141.5 | 322.0 | |
| 357.3 | 133.8 | 316.4 | |
| 362.7 | 129.6 | 320.0 | |
| 359.5 | 123.4 | 316.2 | |
| 369.4 | 122.2 | 323.9 | |
| 363.8 | 114.3 | 317.8 | |
| 369.1 | 109.5 | 321.2 | |
| 365.0 | 103.0 | 316.5 | |
| 374.6 | 101.1 | 323.9 | |
| 368.5 | 93.4 | 317.5 | 
| 1 Represents assets at beginning of period, plus advance tax transfers (if applicable), as a percentage of disbursements during the following 12-month period. | 
· Assets and disbursements shown earlier.
· Trust fund ratios computed by addition and division of corresponding figures.
Note: Estimates based on 2001 Trustees Report high-cost set of assumptions.
· 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: Estimates based on 2001 Trustees Report high-cost set of assumptions.
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December 26, 2001