The table below begins with fiscal year 1977, the first fiscal year to begin on October 1. Prior fiscal years began July 1.

Old-Age, Survivors, and Disability Insurance Trust Funds, Fiscal Years 1977-2023
[In millions]
Fiscal
year		 Total
income		 Total
cost		 Asset Reserves
Net increase
during year 1		 Amount at
end of year
1977 $81,170 $85,068 -$3,898 $39,615
1978 89,595 93,861 -4,265 35,350
1979 102,090 104,073 -1,983 33,367
1980 117,428 118,548 -1,121 32,246
1981 134,565 139,585 -5,019 27,226
1982 148,028 155,964 -7,936 19,290
1983 170,280 170,058 12,660 31,950
1984 178,461 178,199 262 32,212
1985 197,865 188,504 7,538 39,750
1986 215,461 198,730 6,117 45,867
1987 226,893 207,323 19,570 65,437
1988 258,090 219,290 38,800 104,237
1989 284,936 232,491 52,445 156,682
1990 306,822 248,605 58,217 214,900
1991 322,611 269,096 53,515 268,415
1992 338,270 287,524 50,746 319,161
1993 351,354 304,566 46,788 365,949
1994 376,307 319,551 56,757 422,706
1995 396,276 335,830 60,446 483,152
1996 416,064 349,654 66,410 549,562
1997 446,553 365,238 81,316 630,878
1998 478,608 379,291 99,318 730,195
1999 514,731 390,019 124,712 854,908
2000 561,251 409,404 151,847 1,006,754
2001 595,913 432,926 162,987 1,169,741
2002 614,977 455,910 159,067 1,328,808
2003 630,253 474,721 155,532 1,484,340
2004 646,628 495,525 151,103 1,635,443
2005 696,757 523,279 173,478 1,808,922
2006 733,728 548,492 185,237 1,994,158
2007 771,772 585,311 186,461 2,180,619
2008 802,689 617,017 185,672 2,366,291
2009 807,007 669,686 137,321 2,503,612
2010 787,961 706,250 81,710 2,585,323
2011 798,735 730,721 68,014 2,653,336
2012 837,827 773,247 64,580 2,717,916
2013 850,930 813,311 37,619 2,755,536
2014 877,401 850,312 27,088 2,782,624
2015 913,284 887,698 25,586 2,808,210
2016 950,185 916,035 34,150 2,842,360
2017 991,922 944,737 47,185 2,889,545
2018 992,712 988,049 4,663 2,894,208
2019 1,051,053 1,044,540 6,513 2,900,721
2020 1,102,958 1,095,435 7,524 2,908,245
2021 1,080,377 1,134,760 -54,383 2,853,862
2022 1,203,100 1,218,641 -15,541 2,838,320
2023 1,332,948 1,354,566 -21,618 2,816,703
1 The annual net increase in the funds is the change in the asset reserves from the end of one year to the end of the next. In fiscal year 1983, the Old-Age and Survivors Insurance Trust Fund borrowed money from the Hospital Insurance Trust Fund, and repaid the borrowed amounts in 1985 and 1986. For each of these years, the net increase in the funds is equal to total income less total cost, plus amounts borrowed or less amounts repaid.