Bulgarias total military personnel as of 2014 is 37,100, of which 30,400 (80.1%) are active military personnel and 8,100 (11.9%) are civilian personnel. The Land Forces are the largest branch, with at least 18,000 men serving there. In terms of percentage, 53% of all Army personnel are in the Land Forces, 25% are in the Air Force, 13% are in the Navy and 9% are in the Joint Forces Command. Annual spending per soldier amounts to 30,000 leva (~ 15,000 euro) and is scheduled to increase to 43,600 leva by 2014.
How many more percentage points do Land Forces make up of the military personnel than Air Force?
28
number