1979
1980
1981
1982
1983
1984
1985
1986
1987 |
6.28
7.57
6.08
5.65
7.75
5.85
5.05
4.78
5.88 |
(231)
(278)
(223)
(208)
(285)
(215)
(186)
(176)
(216) |
|
|
1988
1989
1990
1991
1992
1993
1994
1995
1996 |
7.42
5.69
5.74
5.58
5.56
6.40
5.48
6.72
7.35 |
(273)
(209)
(211)
(205)
(204)
(235)
(201)
(247)
(270) |
|
|
1997
1998
1999
2000
2001
2002
2003
2004 |
6.47
4.93
4.63
4.54
4.38
5.53
7.34
5.65 |
(238)
(181)
(170)
(167)
(161)
(203)
(270)
(208) |
|