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The table below shows the income and outgo by calendar
quarter for the Old-Age and Survivors Insurance
and the Disability Insurance Trust Funds on a combined
basis. The two funds comprise the Social Security Trust Funds.
The cumulative difference between income and outgo over time
is the amount of assets held by the funds.
Income, outgo, net increase in assets, and assets by calendar
quarter (In billions)
Calendar quarter |
Income |
Outgo |
Net increase in assets |
Assets at end of quarter |
| 1987 Qtr 1 |
$56.4 | $51.2 | $5.3 | $52.1 |
| 1987 Qtr 2 |
65.2 | 54.4 | 10.8 | 62.9 |
| 1987 Qtr 3 |
54.2 | 51.7 | 2.5 | 65.4 |
| 1987 Qtr 4 |
55.2 | 51.9 | 3.4 | 68.8 |
| 1988 Qtr 1 |
63.9 | 54.9 | 9.1 | 77.9 |
| 1988 Qtr 2 |
75.8 | 57.7 | 18.1 | 96.0 |
| 1988 Qtr 3 |
63.1 | 54.9 | 8.3 | 104.2 |
| 1988 Qtr 4 |
60.6 | 55.1 | 5.5 | 109.8 |
| 1989 Qtr 1 |
74.2 | 58.0 | 16.3 | 126.0 |
| 1989 Qtr 2 |
84.3 | 61.1 | 23.3 | 149.3 |
| 1989 Qtr 3 |
65.8 | 58.4 | 7.4 | 156.7 |
| 1989 Qtr 4 |
65.1 | 58.8 | 6.3 | 163.0 |
| 1990 Qtr 1 |
75.4 | 61.4 | 14.0 | 177.0 |
| 1990 Qtr 2 |
94.6 | 65.7 | 28.9 | 205.9 |
| 1990 Qtr 3 |
71.6 | 62.7 | 9.0 | 214.9 |
| 1990 Qtr 4 |
73.7 | 63.4 | 10.4 | 225.3 |
| 1991 Qtr 1 |
81.5 | 66.8 | 14.7 | 240.0 |
| 1991 Qtr 2 |
93.4 | 71.0 | 22.4 | 262.4 |
| 1991 Qtr 3 |
74.0 | 67.9 | 6.0 | 268.4 |
| 1991 Qtr 4 |
80.8 | 68.5 | 12.3 | 280.7 |
| 1992 Qtr 1 |
77.4 | 71.3 | 6.1 | 286.8 |
| 1992 Qtr 2 |
105.1 | 75.3 | 29.8 | 316.6 |
| 1992 Qtr 3 |
75.0 | 72.4 | 2.5 | 319.2 |
| 1992 Qtr 4 |
85.1 | 72.8 | 12.3 | 331.5 |
| 1993 Qtr 1 |
77.1 | 75.7 | 1.4 | 332.9 |
| 1993 Qtr 2 |
108.4 | 79.4 | 29.0 | 361.8 |
| 1993 Qtr 3 |
80.7 | 76.6 | 4.1 | 365.9 |
| 1993 Qtr 4 |
89.3 | 77.0 | 12.3 | 378.3 |
| 1994 Qtr 1 |
86.4 | 79.0 | 7.4 | 385.7 |
| 1994 Qtr 2 |
115.2 | 83.2 | 32.0 | 417.7 |
| 1994 Qtr 3 |
85.4 | 80.3 | 5.0 | 422.7 |
| 1994 Qtr 4 |
94.1 | 80.5 | 13.7 | 436.4 |
| 1995 Qtr 1 |
92.8 | 83.2 | 9.6 | 446.0 |
| 1995 Qtr 2 |
120.7 | 88.0 | 32.7 | 478.7 |
| 1995 Qtr 3 |
88.6 | 84.1 | 4.5 | 483.2 |
| 1995 Qtr 4 |
97.4 | 84.5 | 12.9 | 496.1 |
| 1996 Qtr 1 |
96.4 | 86.6 | 9.8 | 505.9 |
| 1996 Qtr 2 |
129.5 | 90.9 | 38.6 | 544.5 |
| 1996 Qtr 3 |
92.7 | 87.6 | 5.1 | 549.6 |
| 1996 Qtr 4 |
105.8 | 88.4 | 17.4 | 567.0 |
| 1997 Qtr 1 |
105.5 | 90.5 | 14.9 | 581.9 |
| 1997 Qtr 2 |
133.6 | 94.8 | 38.9 | 620.8 |
| 1997 Qtr 3 |
101.7 | 91.6 | 10.1 | 630.9 |
| 1997 Qtr 4 |
116.9 | 92.2 | 24.6 | 655.5 |
| 1998 Qtr 1 |
113.5 | 94.0 | 19.5 | 675.0 |
| 1998 Qtr 2 |
148.2 | 98.1 | 50.1 | 725.1 |
| 1998 Qtr 3 |
100.0 | 94.9 | 5.1 | 730.2 |
| 1998 Qtr 4 |
127.5 | 95.2 | 32.3 | 762.5 |
| 1999 Qtr 1 |
118.9 | 96.5 | 22.4 | 784.8 |
| 1999 Qtr 2 |
156.2 | 100.9 | 55.3 | 840.1 |
| 1999 Qtr 3 |
112.2 | 97.4 | 14.8 | 854.9 |
| 1999 Qtr 4 |
139.3 | 98.1 | 41.2 | 896.1 |
| 2000 Qtr 1 |
129.2 | 100.5 | 28.7 | 924.9 |
| 2000 Qtr 2 |
170.8 | 107.3 | 63.5 | 988.4 |
| 2000 Qtr 3 |
121.9 | 103.5 | 18.4 | 1,006.8 |
| 2000 Qtr 4 |
146.5 | 103.8 | 42.7 | 1,049.4 |
| 2001 Qtr 1 |
139.5 | 107.6 | 31.8 | 1,081.3 |
| 2001 Qtr 2 |
186.1 | 111.9 | 74.1 | 1,155.4 |
| 2001 Qtr 3 |
123.9 | 109.6 | 14.3 | 1,169.7 |
| 2001 Qtr 4 |
152.6 | 109.8 | 42.8 | 1,212.5 |
| 2002 Qtr 1 |
142.8 | 113.7 | 29.1 | 1,241.6 |
| 2002 Qtr 2 |
190.5 | 117.5 | 72.9 | 1,314.6 |
| 2002 Qtr 3 |
129.1 | 114.9 | 14.2 | 1,328.8 |
| 2002 Qtr 4 |
164.7 | 115.5 | 49.2 | 1,378.0 |
| 2003 Qtr 1 |
141.1 | 117.5 | 23.6 | 1,401.6 |
| 2003 Qtr 2 |
195.2 | 122.4 | 72.8 | 1,474.4 |
| 2003 Qtr 3 |
129.2 | 119.3 | 10.0 | 1,484.3 |
| 2003 Qtr 4 |
166.3 | 119.9 | 46.4 | 1,530.8 |
| 2004 Qtr 1 |
145.0 | 122.9 | 22.1 | 1,552.9 |
| 2004 Qtr 2 |
199.5 | 128.2 | 71.3 | 1,624.2 |
| 2004 Qtr 3 |
135.8 | 124.5 | 11.3 | 1,635.4 |
| 2004 Qtr 4 |
177.4 | 126.0 | 51.4 | 1,686.8 |
| 2005 Qtr 1 |
154.0 | 130.0 | 24.1 | 1,710.9 |
| 2005 Qtr 2 |
216.9 | 135.5 | 81.4 | 1,792.3 |
| 2005 Qtr 3 |
148.3 | 131.8 | 16.6 | 1,808.9 |
| 2005 Qtr 4 |
182.4 | 132.7 | 49.7 | 1,858.7 |
| 2006 Qtr 1 |
168.7 | 138.0 | 30.7 | 1,889.4 |
| 2006 Qtr 2 |
229.2 | 143.6 | 85.6 | 1,974.9 |
| 2006 Qtr 3 |
153.4 | 134.2 | 19.2 | 1,994.2 |
| 2006 Qtr 4 |
193.6 | 139.6 | 54.0 | 2,048.1 |
| 2007 Qtr 1 |
179.0 | 145.8 | 33.2 | 2,081.3 |
| 2007 Qtr 2 |
239.0 | 151.8 | 87.3 | 2,168.6 |
| 2007 Qtr 3 |
160.2 | 148.2 | 12.0 | 2,180.6 |
| 2007 Qtr 4 |
206.7 | 148.8 | 57.9 | 2,238.5 |
| 2008 Qtr 1 |
182.8 | 153.2 | 29.7 | 2,268.2 |
| 2008 Qtr 2 |
250.3 | 159.0 | 91.4 | 2,359.5 |
| 2008 Qtr 3 |
162.9 | 156.1 | 6.7 | 2,366.3 |
| 2008 Qtr 4 |
209.3 | 156.9 | 52.4 | 2,418.7 |
| 2009 Qtr 1 |
185.3 | 167.2 | 18.1 | 2,436.8 |
| 2009 Qtr 2 |
251.8 | 174.3 | 77.5 | 2,514.2 |
| 2009 Qtr 3 |
160.7 | 171.3 | -10.6 | 2,503.6 |
| 2009 Qtr 4 |
209.8 | 173.0 | 36.7 | 2,540.3 |
| 2010 Qtr 1 |
172.9 | 174.1 | -1.2 | 2,539.2 |
| 2010 Qtr 2 |
246.4 | 181.2 | 65.2 | 2,604.4 |
| 2010 Qtr 3 |
158.8 | 177.9 | -19.1 | 2,585.3 |
| 2010 Qtr 4 |
202.9 | 179.3 | 23.6 | 2,609.0 |
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