Table S-43 - Concentration of Underfunding in PBGC-Insured Plans (1990-2001) - Single-Employer Program

Beginning of Year Total Underfunding (in millions) 10 Plans With the Highest Underfunding (in millions) Next 40 Plans' Underfunding (in millions) All Other Plans' Underfunding (in millions)
1990 $35,689 $14,119 39.6% $6,487 18.2% $15,083 42.3%
1991 34,485 14,067 40.8% 6,884 20.0% 13,534 39.2%
1992 47,528 21,610 45.5% 7,818 16.4% 18,100 38.1%
1993 59,622 25,894 43.4% 9,337 15.7% 24,392 40.9%
1994 75,569 28,658 37.9% 10,310 13.6% 36,601 48.4%
1995 37,278 6,535 17.5% 7,921 21.2% 22,822 61.2%
1996 83,071 13,850 16.7% 16,410 19.8% 52,810 63.6%
1997 47,906 7,751 16.2% 8,473 17.7% 31,682 66.1%
1998 49,242 14,432 29.3% 6,942 14.1% 27,868 56.6%
1999 54,237 11,500 21.2% 9,018 16.6% 33,719 62.2%
2000 6,566 1,631 24.8% 1,077 16.4% 3,858 58.8%
2001 33,356 11,845 35.5% 5,397 16.2% 16,113 48.3%
Source: Internal Revenue Service Form 5500 Series Filings for single-employer plans. Data for plan years prior to 1999 include only plans with 100 or more participants.
Estimates for 2000 reported last year have been updated.
Due to rounding of individual items, numbers may not add up across columns and percentages may not add up to 100 percent.
Vested liabilities have been adjusted to an interest rate that, along with an assumed mortality table, reflects the cost to purchase an annuity at the beginning of the relevant year.
The assumed mortality table was UP-84 for 1990-1992 and GAM-83 for 1993-2001.

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