As the Consumer Financial Protection Bureau heads into what is likely to be its busiest year since its 2011 launch, a new report shows the agency nearly doubled its staff size in the past year and a half.

The agency employed 663 staff members at the end of fiscal year 2011 and expanded that number to 1,014 employees by the end of November 2012, the bureau said in its latest report to Congress.

About 232 employees initially transferred to the CFPB from other federal agencies in fiscal year 2011, according to a report filed with House and Senate banking-related committees.

Thirty-three percent of the bureau's workforce came from other federal agencies, while 7% used to be part of the Federal Reserve.

Another 19% came from federal agencies that oversee financial services. And about 39% of the staff was recruited from non-government jobs or private sector employment, while 2% of the employees used to work with state and local governments.