. , , 6 – 7% – . . , , 6% – (60 1 ), 7% – (70 1 ).
18 – 20 , . , : , , , , , , , , , .
:
" ": 1 - " " 2 - 3 - " " 4 - . 5 - 6 - 7 - ... 34 - 35 - 36 -