In 2010 Turkey had a crude birth rate of 17.2 per 1000, in 2011 16.7, down from 20.3 in 2001. The total fertility rate (TFR) in 2010 was 2.05 children per woman, in 2011 2.02. The crude birth rate in 2010 ranged from 11.5 in Marmara Region (TFR 1.52) (11,5;1.55 in 2011), similar to Bulgaria, to 27.9 in Southeastern Anatolia Region (TFR 3.53) (27.1;3,42 in 2011), similar to Syria. Similarly, in 2012, the TFR ranged from 1.43 in Kırklareli, to 4.39 in Şanlıurfa. Deaths statistics from MERNIS are available as of 2009. Mortality data prior to 2009 are incomplete.
Question: By how many people had the Turkey crude birth rate per 1000 decrease between 2010 and 2011?
Answer: .5