Libya's jobless rate at 20.7 percent: report
More than 33,000 families live in unhealthy housing conditions, including some city slum shacks, it added.
The report, highlighting social differences in Libya, comes before a two-day meeting of the country's top legislative and executive body, the General People Congress, which begins late on Sunday.
The Congress is widely expected to endorse a Gaddafi plan to distribute more than $30 billion oil money this year directly to the 5 million Libyans in a bid to lift a million out of poverty.
Gaddafi blames widespread corruption in government for the wealth gap between rich and poor in the country.
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