From July to December 1941 Circus operations cost Fighter Command 416 fighters in 20,495 sorties and RAF Bomber Command 108 in 1,406. Sperrle's fighters flew 19,535 sorties and lost 93 in the same period. Fighter Command claimed 731 German aircraft from 14 June to December 1941 whereas actual German losses were 103 leading post-war RAF analysis to conclude it lost four aircraft and 2.5 pilots for every German fighter destroyed. Rather than wear "Luftflotte" 3 down, the number of German fighter aircraft in the west increased from 430 on 27 September 1941 to 599 on 30 September 1942.