.. (4 , . -)
. ..
. . [.., ..,2002] . [ .., .., .., 1987] , , . 11% . , , .
. () .
. 121 . , 23 25 5 - 6 (, ) -1 , 1 - 26 7 8 ( ) - 2 , 26 12 -13 ( ) - 3 , 4 20 - 23 - 44 ( ) 4 . .
. . 1 34%, 2 77%, 3 81%, 4 81%. : , , , (, )
.
, ( ) .
. . , , , , , . , .
. , . . , ,
. .