2003

7.8

1988

7.8

2005

6.4

1972

7.1

2001

7.4

1987

4.1

1974

7.5

2005

7.1

1984

7.5

1971

6.4

1997

7.5

1982

7.5

1997

7.7

1986

7.2

2002

7.2

1989

5.7

2004

7.4

1994

6.2

2005

6.3

1997

7.4