U.S. life expectancy stats released shows that Hispanics live longer than whites and blacks.

According to the report, released by the U.S. Centers for Disease Control and Prevention on Wednesday, the so-called "Hispanic paradox" was confirmed. Hispanics usually have lower income, no health insurance and usually work in high risk jobs.

"Although seemingly paradoxical, these results are consistent with the findings of numerous studies, which show a Hispanic mortality advantage despite this population's lower socioeconomic status," said report author Elizabeth Arias from CDC's National Center for Health Statistics in a news release.

Hispanics, on average, outlive whites by 2.5 years and blacks by 7.7 years, according to the report.

Their life expectancy at birth in 2006 was 80.6 years, compared with 78.1 for whites, 72.9 for blacks and 77.7 years for the total population.The stats did not include the Asian population.

In the past, statistics for Hispanics were included among the black and white populations. After grouping Hispanics separately, the life expectancies for whites and blacks have slightly declined.

The secret behind their longer life is not clear. Experts however believe it may be linked to the strong social and family ties they share.