2006 Trustees Report
The following tables present the plot points for Figure IV.B1--OASI and DI Trust Fund income rates and cost rates (as a percentage of taxable payroll) on a calendar year basis for the historical period (1990-2005) and the long-range projection period (2006-2080). In the projection period, cost rates are shown under all three sets of assumptions. Only alternative II income rates are shown because of the small difference among the three alternatives.
Historical rates
Calendar year
|
OASI
|
DI
|
Income rates
|
Cost rates
|
Income rates
|
Cost rates
|
1990
|
11.32%
|
9.66%
|
1.17%
|
1.09%
|
1991
|
11.44%
|
10.15%
|
1.21%
|
1.18%
|
1992
|
11.43%
|
10.27%
|
1.21%
|
1.27%
|
1993
|
11.40%
|
10.37%
|
1.21%
|
1.35%
|
1994
|
10.70%
|
10.22%
|
1.89%
|
1.40%
|
1995
|
10.70%
|
10.22%
|
1.88%
|
1.44%
|
1996
|
10.73%
|
10.06%
|
1.89%
|
1.48%
|
1997
|
10.93%
|
9.83%
|
1.71%
|
1.44%
|
1998
|
10.96%
|
9.45%
|
1.72%
|
1.42%
|
1999
|
10.99%
|
9.09%
|
1.72%
|
1.42%
|
2000
|
10.89%
|
8.97%
|
1.80%
|
1.42%
|
2001
|
10.89%
|
9.08%
|
1.82%
|
1.48%
|
2002
|
10.91%
|
9.30%
|
1.82%
|
1.60%
|
2003
|
10.89%
|
9.33%
|
1.82%
|
1.68%
|
2004
|
10.92%
|
9.30%
|
1.82%
|
1.78%
|
2005
|
10.88%
|
9.30%
|
1.82%
|
1.85%
|
Projected rates
Calendar year
|
OASI income rates (II)
|
OASI cost rates
|
DI income rates (II)
|
DI cost rates
|
I
|
II
|
III
|
I
|
II
|
III
|
2006
|
10.91%
|
9.28%
|
9.31%
|
9.53%
|
1.83%
|
1.88%
|
1.91%
|
2.02%
|
2007
|
10.93%
|
9.18%
|
9.23%
|
9.55%
|
1.83%
|
1.85%
|
1.92%
|
2.09%
|
2008
|
10.96%
|
9.11%
|
9.18%
|
9.57%
|
1.83%
|
1.82%
|
1.92%
|
2.14%
|
2009
|
10.94%
|
9.09%
|
9.23%
|
9.72%
|
1.83%
|
1.79%
|
1.93%
|
2.20%
|
2010
|
10.96%
|
9.10%
|
9.33%
|
9.87%
|
1.83%
|
1.78%
|
1.96%
|
2.28%
|
2011
|
11.00%
|
9.13%
|
9.45%
|
10.03%
|
1.84%
|
1.74%
|
1.95%
|
2.30%
|
2012
|
11.03%
|
9.22%
|
9.64%
|
10.32%
|
1.84%
|
1.73%
|
1.99%
|
2.39%
|
2013
|
11.05%
|
9.36%
|
9.89%
|
10.66%
|
1.84%
|
1.71%
|
2.02%
|
2.45%
|
2014
|
11.07%
|
9.52%
|
10.15%
|
10.98%
|
1.84%
|
1.70%
|
2.04%
|
2.50%
|
2015
|
11.08%
|
9.70%
|
10.41%
|
11.31%
|
1.84%
|
1.69%
|
2.06%
|
2.56%
|
2016
|
11.10%
|
9.92%
|
10.69%
|
11.62%
|
1.85%
|
1.68%
|
2.07%
|
2.59%
|
2017
|
11.12%
|
10.16%
|
10.98%
|
11.95%
|
1.85%
|
1.68%
|
2.09%
|
2.61%
|
2018
|
11.14%
|
10.40%
|
11.28%
|
12.29%
|
1.85%
|
1.68%
|
2.10%
|
2.64%
|
2019
|
11.16%
|
10.65%
|
11.57%
|
12.63%
|
1.85%
|
1.68%
|
2.11%
|
2.66%
|
2020
|
11.18%
|
10.90%
|
11.87%
|
12.98%
|
1.85%
|
1.67%
|
2.11%
|
2.67%
|
2021
|
11.19%
|
11.14%
|
12.17%
|
13.31%
|
1.85%
|
1.68%
|
2.13%
|
2.69%
|
2022
|
11.21%
|
11.36%
|
12.44%
|
13.63%
|
1.85%
|
1.69%
|
2.16%
|
2.72%
|
2023
|
11.23%
|
11.59%
|
12.72%
|
13.95%
|
1.85%
|
1.70%
|
2.18%
|
2.76%
|
2024
|
11.24%
|
11.81%
|
12.99%
|
14.26%
|
1.85%
|
1.72%
|
2.21%
|
2.79%
|
2025
|
11.26%
|
12.03%
|
13.26%
|
14.58%
|
1.85%
|
1.73%
|
2.24%
|
2.82%
|
2026
|
11.28%
|
12.21%
|
13.51%
|
14.90%
|
1.85%
|
1.75%
|
2.27%
|
2.86%
|
2027
|
11.29%
|
12.40%
|
13.77%
|
15.23%
|
1.86%
|
1.75%
|
2.29%
|
2.89%
|
2028
|
11.31%
|
12.58%
|
14.02%
|
15.55%
|
1.86%
|
1.74%
|
2.28%
|
2.89%
|
2029
|
11.32%
|
12.72%
|
14.23%
|
15.85%
|
1.86%
|
1.73%
|
2.28%
|
2.89%
|
2030
|
11.34%
|
12.85%
|
14.44%
|
16.13%
|
1.86%
|
1.73%
|
2.28%
|
2.89%
|
2031
|
11.35%
|
12.97%
|
14.62%
|
16.41%
|
1.86%
|
1.72%
|
2.27%
|
2.89%
|
2032
|
11.36%
|
13.06%
|
14.79%
|
16.67%
|
1.86%
|
1.71%
|
2.27%
|
2.89%
|
2033
|
11.37%
|
13.12%
|
14.92%
|
16.89%
|
1.86%
|
1.70%
|
2.27%
|
2.89%
|
2034
|
11.38%
|
13.15%
|
15.02%
|
17.07%
|
1.86%
|
1.70%
|
2.27%
|
2.90%
|
2035
|
11.38%
|
13.16%
|
15.09%
|
17.23%
|
1.86%
|
1.70%
|
2.27%
|
2.92%
|
2036
|
11.39%
|
13.16%
|
15.15%
|
17.38%
|
1.86%
|
1.70%
|
2.28%
|
2.93%
|
2037
|
11.39%
|
13.14%
|
15.20%
|
17.52%
|
1.86%
|
1.69%
|
2.28%
|
2.93%
|
2038
|
11.40%
|
13.10%
|
15.23%
|
17.64%
|
1.86%
|
1.69%
|
2.28%
|
2.94%
|
2039
|
11.40%
|
13.04%
|
15.23%
|
17.74%
|
1.86%
|
1.69%
|
2.28%
|
2.95%
|
2040
|
11.40%
|
12.98%
|
15.22%
|
17.82%
|
1.86%
|
1.70%
|
2.29%
|
2.98%
|
2041
|
11.40%
|
12.91%
|
15.20%
|
17.90%
|
1.86%
|
1.70%
|
2.31%
|
3.01%
|
2042
|
11.40%
|
12.84%
|
15.19%
|
17.98%
|
1.86%
|
1.71%
|
2.32%
|
3.03%
|
2043
|
11.40%
|
12.77%
|
15.17%
|
18.05%
|
1.86%
|
1.72%
|
2.34%
|
3.06%
|
2044
|
11.40%
|
12.71%
|
15.15%
|
18.12%
|
1.86%
|
1.72%
|
2.36%
|
3.09%
|
2045
|
11.40%
|
12.64%
|
15.14%
|
18.20%
|
1.86%
|
1.73%
|
2.37%
|
3.12%
|
2046
|
11.40%
|
12.59%
|
15.13%
|
18.28%
|
1.86%
|
1.73%
|
2.38%
|
3.15%
|
2047
|
11.41%
|
12.54%
|
15.14%
|
18.38%
|
1.86%
|
1.73%
|
2.39%
|
3.16%
|
2048
|
11.41%
|
12.49%
|
15.14%
|
18.48%
|
1.86%
|
1.73%
|
2.39%
|
3.18%
|
2049
|
11.41%
|
12.45%
|
15.15%
|
18.58%
|
1.86%
|
1.72%
|
2.39%
|
3.19%
|
2050
|
11.41%
|
12.40%
|
15.15%
|
18.68%
|
1.86%
|
1.72%
|
2.40%
|
3.21%
|
2051
|
11.41%
|
12.36%
|
15.16%
|
18.79%
|
1.86%
|
1.72%
|
2.41%
|
3.23%
|
2052
|
11.41%
|
12.33%
|
15.18%
|
18.90%
|
1.86%
|
1.72%
|
2.41%
|
3.25%
|
2053
|
11.42%
|
12.30%
|
15.20%
|
19.01%
|
1.86%
|
1.72%
|
2.42%
|
3.27%
|
2054
|
11.42%
|
12.27%
|
15.22%
|
19.13%
|
1.86%
|
1.72%
|
2.43%
|
3.29%
|
2055
|
11.42%
|
12.24%
|
15.25%
|
19.25%
|
1.86%
|
1.72%
|
2.43%
|
3.31%
|
2056
|
11.42%
|
12.22%
|
15.29%
|
19.39%
|
1.86%
|
1.72%
|
2.43%
|
3.32%
|
2057
|
11.43%
|
12.21%
|
15.32%
|
19.54%
|
1.86%
|
1.71%
|
2.43%
|
3.33%
|
2058
|
11.43%
|
12.19%
|
15.36%
|
19.69%
|
1.86%
|
1.71%
|
2.43%
|
3.33%
|
2059
|
11.43%
|
12.17%
|
15.40%
|
19.84%
|
1.86%
|
1.70%
|
2.43%
|
3.34%
|
2060
|
11.43%
|
12.14%
|
15.44%
|
19.98%
|
1.86%
|
1.70%
|
2.43%
|
3.34%
|
2061
|
11.44%
|
12.11%
|
15.48%
|
20.14%
|
1.86%
|
1.70%
|
2.43%
|
3.35%
|
2062
|
11.44%
|
12.09%
|
15.52%
|
20.30%
|
1.86%
|
1.70%
|
2.43%
|
3.36%
|
2063
|
11.44%
|
12.07%
|
15.56%
|
20.47%
|
1.86%
|
1.70%
|
2.43%
|
3.37%
|
2064
|
11.45%
|
12.04%
|
15.60%
|
20.64%
|
1.86%
|
1.70%
|
2.44%
|
3.38%
|
2065
|
11.45%
|
12.02%
|
15.65%
|
20.82%
|
1.87%
|
1.70%
|
2.44%
|
3.40%
|
2066
|
11.45%
|
11.99%
|
15.69%
|
21.00%
|
1.87%
|
1.70%
|
2.45%
|
3.41%
|
2067
|
11.46%
|
11.97%
|
15.74%
|
21.18%
|
1.87%
|
1.70%
|
2.45%
|
3.42%
|
2068
|
11.46%
|
11.95%
|
15.80%
|
21.37%
|
1.87%
|
1.70%
|
2.45%
|
3.42%
|
2069
|
11.46%
|
11.92%
|
15.85%
|
21.56%
|
1.87%
|
1.70%
|
2.45%
|
3.41%
|
2070
|
11.47%
|
11.90%
|
15.90%
|
21.76%
|
1.87%
|
1.70%
|
2.44%
|
3.40%
|
2071
|
11.47%
|
11.88%
|
15.95%
|
21.94%
|
1.87%
|
1.70%
|
2.44%
|
3.40%
|
2072
|
11.47%
|
11.85%
|
15.98%
|
22.11%
|
1.87%
|
1.70%
|
2.44%
|
3.40%
|
2073
|
11.47%
|
11.83%
|
16.02%
|
22.28%
|
1.87%
|
1.70%
|
2.45%
|
3.40%
|
2074
|
11.48%
|
11.80%
|
16.06%
|
22.44%
|
1.87%
|
1.71%
|
2.45%
|
3.40%
|
2075
|
11.48%
|
11.78%
|
16.09%
|
22.60%
|
1.87%
|
1.71%
|
2.46%
|
3.41%
|
2076
|
11.48%
|
11.77%
|
16.12%
|
22.76%
|
1.87%
|
1.71%
|
2.46%
|
3.41%
|
2077
|
11.48%
|
11.76%
|
16.16%
|
22.92%
|
1.87%
|
1.72%
|
2.46%
|
3.41%
|
2078
|
11.49%
|
11.75%
|
16.20%
|
23.07%
|
1.87%
|
1.72%
|
2.47%
|
3.42%
|
2079
|
11.49%
|
11.74%
|
16.23%
|
23.21%
|
1.87%
|
1.72%
|
2.47%
|
3.42%
|
2080
|
11.49%
|
11.74%
|
16.27%
|
23.35%
|
1.87%
|
1.72%
|
2.47%
|
3.42%
|
RETURN TO TRUSTEES REPORT.