BOGOTA, July 30 (Reuters) - Colombia"s urban jobless rate fell to 17.1% in June, from 24.9% in the same month last year, the government statistics agency said on Friday, based on surveys in the 13 biggest cities. The national unemployment rate was 14.4%, down from 19.8% a year earlier, the DANE agency said. The urban jobless rate is more closely watched by financial markets than the national figure. Nearly 70% of the workforce is in large cities. Unemployment figures are not seasonally adjusted and can be volatile, usually depending on factors like peak shopping periods and vacation months. For the full report go to: here Urban National Unemployment Unemployment June 17.1% 14.4% May 16.6% 15.6% April 17.4% 15.1% (Reporting by Bogota newsroom; Editing by Richard Chang) Our Standards: The Thomson Reuters Trust Principles.