?? ?? ????? ???????? ??????? ??????? ??? ?? ????? 1931? ???? ??? ????? ??????? ?????? ?? ???? 1949 ???? ????? ?? ??? ????? ????? ?? ?????? ????? ????????? ???? ????????? ????? ??????? ?? ?????? ??? ???? ???????.

?? 1947 ?1949? ??? ?? ??????? ???????? ??????? ?????? ???????? ????????. ??? 1949 ? 1952? ??? ?? ???? ??????? ?? ??????. ??? 1952 ? 1953? ????? ??????? ????????? ???? ??????? ?? ????? ???????? ?????? ??????? ??? ???????? ?????? ??????? ????? ??? ?????. ??? 1953 ? 1955? ???? ?? ??????? ????????? ????? ????? ???????? ?? ???? ??????? ??????? ????????? ?? ?????. ??? 1955 ? 1966? ??? ???? ???? ???? ????? ??????? ?????? ????? ???ɡ ????? ???? ???? ?????? ????? ??????? ????? ???? ?????? ??????? ????? ??????? ??????? ????? ??? ????? ??? ????? ??????. ????? ??????? ?? ???? 1966 ? 1970 ????? "?????? ???????? ??????" ?? ??? ??? ?????? ?????. ?? 1970 ? 1980? ??? ???? ??? ??????? ???? ???? ?????? ??????ɡ ???? ?????? ??????? ????? ????? ????? ???? ???? ????? ????? ????? ???? ????? ????? ??????? ??????? ?? ???? ??? ?????. ??? 1980 ? 1981? ????? ??????? ????????? ??????? ?????? ??????? ????? ????? ?? ????? ????? ????????. ??? 1981 ? 1983? ???? ???? ???? ???? ???? ????? ?? ????? ?????? ????? ?????? ?? ?????? ???????????.

??? 1983 ? 1984? ???? ???? ???? ???? ????? ?????? ????? ????? ???? ??????? ?? ????? ???? ?????? ??????? ???????? ??. ??? 1984 ? 1985? ??? ???? ???? ????? ??????? ??????? ????? ????????. ??? 1985 ? 1987? ??? ????? ?????? ??????? ??????? ????? ???????? ????? ??????? ??????. ??? 1987 ? 1992? ??? ????? ?????? ??????? ??????? ????? ?????ɡ ????? ?????? ??????? ???????? ???. ??? 1992 ? 1993? ??? ???? ??????? ??????? ????? ???????ɡ ????? ?????? ?????? ???????ɡ ????? ???? ??? ???????? ???????ɡ ????? ????? ?????? ????? ?????. ??? 1995 ? 1997? ???? ???????? ??? ??? ???? ??? ???? ????? ???? ????? ??????? ?????? ??? ?????? ????. ??? ?????? 1997? ????? ???? ??????? ??????? ?????? ??????? ????? ???????? ??????? ???? ????? ??????? ?????? ???? ????? ?????? ???????? ????? ???? ??? ???????? ????? ???????? ?????????? ??????? ???. ??? ?????? 1998? ????? ???? ?????? ????????? ?????? ?????? ????? ?????.

??? ???? ???????? ????? ????? ???????? ??????? ???ɡ ???? ???????? ?????????? ??????? ???? ???????? ???ɡ ???? ?????? ??????? ???? ????? ?????? ???????? ??????? ???ɡ ???? ?????? ??????? ????? ?????? ?????? ???????? ??????? ???ɡ ?????? ?? ????????? ???????? ?????? ??? ??????? ??? ????? ??????? ?????? ???? ????? ??? ???????? ????? ???????? ???? ?????? ??????? ??? ??????? ???. ???? ?????? ?????? ?????? ??????? ??????? ????? ?????.

??? ??? ???? ?????? ??? ????? ????? ?????? ????? ?????? ??? ????? ?????? ??????????? ???1980