Fewer Americans aged 18 to 29 worked full-time for an employer in June than a year ago, Gallup announced Friday. According to its Gallup Daily Payroll to Population employment rate report, 43.6 percent of young adults worked full-time in June, down from 47.0 percent in June 2012. The full-time employment rate for the age group was 45.8 percent in June 2011 and 46.3 percent in June 2010.

Eighteen to 29-year-old Americans with a college degree are nearly twice as likely (65.4 percent) as those without a degree (38.6 percent) to have a full-time job. Full-time employment rates dropped for both groups, from 68.9 percent and 41.0 percent last year.

On the other hand, employment levels for older Americans improved from June 2012:

• Age 30 to 49: 61.4 percent, flat
• Age 50 to 64: 48.2 percent, up from 46.6 percent
• 65 or older: 8.4 percent, up from 7.2 percent

The results, not seasonally adjusted, are based on Gallup Daily tracking interviews, conducted by landline and cellphone, with approximately 30,000 Americans each month. Gallup's P2P rate measures the percentage of the U.S. adult population that is employed full time by an employer for at least 30 hours per week.