1987

7.1

1995

10.0

1993

5.3

1982

6.9

1990

6.0

1995

6.0

2004

6.3

1986

6.7

1994

7.8

1992

8.0

1999

7.5

1992

7.1

1990

5.1

1985

7.5

1984

7.5

1994

5.3

1986

4.4

1991

5.0

2010

7.9

1982

5.5

2006

6.1

2018

6.0

1988

7.0

1984

7.5

1989

7.2

1996

7.2

1982

4.1