1. National Center for Health Statistics Vital Statistics of the United States 1995 II Part A section 6 (DHHS Publication Hyattsville MD 1998) p. 14.
2. Day J. C., Population Projections of the United States by Age, Sex, Race, and Hispanic Origin: 1995 to 2050 (Current Population Reports (Bureau of the Census, U.S. Printing Office, Washington, DC, 1996), p. 25p.
3. Wacter K. W., Philos. Trans. R. Soc. London Ser. B352, 1811 (1997);
4. Lee R. and , Tuljapurkar S., Demography 34, 67 (1997).
5. Bipartisan Panel to Design Long-Range Social Security Reform (Legislative Bulletin 105–10 (SSA Press Office, Washington, DC, 1998).