,
(
500
1000
1500
2000
2500
3000
3500
4000
4500
)
1
...
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
...
2677
, 4
, ,
-
( )
. 10
:
7
- 7
1
...
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
...
2677