The one tenth of one percent drop over the month to 7.6 percent was probably the result of more people giving up on looking for work.
The Colorado Department of Labor and Employment reports the biggest job gains in December came in education and health services, leisure and hospitality and the general category of business services.
Meantime, unemployment rates fell in 21 other states in December despite budget battles in Washington.
Rates increased in 16 states and the District of Columbia, and was unchanged in 12 according to the U.S. Department of Labor.
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