Since Colorado began allowing retail stores to sell recreational marijuana on Jan. 1, interest in travel to the state has spiked, according to a data research company.

Online searches for travel deals to the Mile High state have outpaced all other destinations in the United States, according to a study by Boston-based Hopper Research.

“Flight search demand for Denver has been 6.3 percent above the national search average since Dec. 1,” the study found. “Demand has been up at least 10 percent for each of the last three weeks, and peaked at a 14 percent increase during the first week of January. Last year, the search demand to Denver during the same time period tracked at or below the national average.”

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