??? ???? ????? ‘??’ ?? ???? ? ???? ??????? ?? ?? ?? ??? ????. ?????? 9, 10? ??? ‘???? ?? ??? ??? ?? ?·??? ??? ??’ ????? ??? ??? 18? ????. 59?? 455?? ???? ??? ????? ???? ??? ??? ???? ???, ???, ??? ? ??????? ??? ??? 218?(49.2%)?? ??? ??? ????. ??? ???(????)? ????(IT)? ????? ?? ??? ?? 161?(36.3%)? 133?(30%)?? ????. ??? ??? ???? ?? ?? ??? ?? ???? 48?(10.8%)??? ?? ????(10.6%) ????(8.4%) ??(7.7%) ????.