context: The number of personnel is specified by Decree of the President of Russia of the President of Russia. On 1 January 2008, a number of 2,019,629 units, including military of 1,134,800 units, was set. In 2010 the International Institute for Strategic Studies (IISS) estimated that the Russian Armed Forces numbered about 1,027,000 active troops and in the region of 2,035,000 reserves (largely ex-conscripts). As opposed to personnel specified by decree, actual personnel numbers on the payroll was reported by the Audit Chamber of Russia as 766,000 in October 2013. As of December 2016, the armed forces are at 93 percent of the required manpower, up from 82 percent reported in December 2013.
question: How many years did it take for the armed forces to reach 93% of required manpower from 2013?
answer: 3