,
(
300
600
900
1200
1500
1800
2100
2400
2700
3000
)
1
...
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
...
3329
. .15
" " " "
(Multivariate Analysis)
() -
.3
,
2.4
( )
ѻ
- -
1
...
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
...
3329