In the second decade of the 21st century, the city had a gradual peak in violent crime. In 2010, there was a combined total of 3,272 burglaries, 511 robberies, 753 aggravated assaults, 25 homicides, as well as 574 motor vehicle thefts out of what was then a decreasing population of 287,208. In 2011, there were 1,562 aggravated assaults, 30 murders, 1,152 robberies, 8,366 burglaries, and 1,465 cases of motor vehicle theft. In 2012, there were a combined total of 39 murders, 2,015 aggravated assaults, 6,739 burglaries, and 1,334 cases of motor vehicle theft. In 2013 it had a drop in the crime rate. According to a state government task force, Toledo has been identified as the fourth-largest recruitment site for Human trafficking in the United States.
Question: How many more robberies occurred in 2011 than in 2010?
Answer: 641