Nearly 15 percent of the U.S. population relied on food stamps in May, according to the United States Department of Agriculture.

The number of Americans using the government's Supplemental Nutrition Assistance Program (SNAP) -- more commonly referred to as food stamps -- shot to an all-time high of 45.8 million in May, the USDA reported. That's up 12% from a year ago, and 34% higher than two years ago.

To qualify for food stamps, an individual's income can't exceed $1,174 a month or $14,088 a year -- an amount that is 130 percent of the national poverty level.

The average food stamp benefit was $133.80 per person and $283.65 per household in May.