4. .

 

,

1947 .,

= / + /

1947-1971 .,

: = / + /

: = / + /

1971-1986 .,

= /- + /

1986 .,

=

(.) = /.

 

:


4.

 

= ( )

/ = ( )

/ =

/, / =

/- =

/ =

(.) = , (

, )

/. = ( )

=