{????????? ??? ???????????? making use of ?????????????????????? ???????? ???? ???? ??? ?? ??????? ????????? ????????? |???????? ????? ?? ?????????? ???? ??????? ??????????????-?????? ???????????? ?????? ??? adults ???? fifty % ??? ??? ????????? ?????????? ??????? ??????????? ????????????? ??????????? ????????????? ????? ??????? ????????????? ?????