There were 36.3 million Americans over age 65 in 2000, and it is projected that there will be 86.7 million by 2050.

2000 CENSUS, U.S. CENSUS BUREAU

There were 33.9 million family caregivers of elders in 2004, and it is projected that there will be 81 million by 2050.

CAREGIVING IN THE U.S., NATIONAL ALLIANCE FOR CAREGIVING AND AARP, 2004.