[Franek Grabowski]

Few years ago together with a friend we did a statistic of killed Spitfire pilots per destroyed aircraft over the war in the Polish Air Force. The result was approx. 47% pilots killed. The same calculated for 1941 summer offensive (June-December) German losses gave the ratio of 86%!!!
It is either ratio of killed Germans was very high or the German loss lists are largely incomplete in case of incidents not involving human losses.
I must note here, that I have noticed some cases of Allied pilots claiming seeing parachutes over France that could not have had been attributed to own losses but not present on German lists as well.