1997

6.1

2019

2.5

2006

7.1

1980

8.2

1986

7.1

2001

6.7

1983

6.0

2023

0.0

1999

7.7

1999

7.5

2006

7.4

1991

6.5

2007

6.7

2018

6.1

1991

6.1

1973

7.7

1996

6.0

1981

7.3

2006

6.5

1995

7.0