Allstate, which insures about 10 percent of the nation's drivers, has released its 9th annual report on traffic accidents, analyzing claims for 195 cities between January 2010 and December 2011 to determine how likely it is that a driver might get into an accident.

Fort Collins, CO came in as the city with the best drivers, followed closely by Boise, ID, Sioux Falls, SD and Brownsville, TX.

The top 10 worst cities were:

1. Washington DC

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2. Baltimore, MD

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3. Providence, RI

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4. Hialeah, FL

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5. Glandale, CA

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6. Philadelphia, PA

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7. Alexandria, VA

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8. Miami, FL

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9. San Francisco

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10. Arlington, VA

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