According to Aleksander Lasik, about 6,335 people (6,161 of them men) worked for the SS at Auschwitz over the course of the camp's existence; 4.2 percent were officers, 26.1 percent non-commissioned officers, and 69.7 percent rank and file. In March 1941, there were 700 SS guards; in June 1942, 2000; and in August 1944, 3,342. At its peak in January 1945, 4,480 SS men and 71 SS women worked in Auschwitz; the higher number is probably attributable to the logistics of evacuating the camp. Female guards were known as SS supervisors ("SS-Aufseherinnen").