A similar survey conducted the previous year found the same to be true for about 30 percent of the families.
That's up from 40 percent in a similar survey last year.
A similar survey, due out today, is expected to show further increases.
The study did find some improvement; in a similar survey a year ago, the number was 81 percent.
However, a similar survey was repeated in 1991 and the results were rather different.
Four years ago, a similar survey found 21.4 million Americans using private food charity.
The report says that little has changed since a similar survey was conducted two years ago.
This was up from the 50 percent in a similar survey covering the first seven months of 1993.
This is up 11% from a similar survey conducted in 2008.
She compared the answers to those from a similar survey in 1984.