1993

6.1

2023

6.0

1997

6.6

2004

5.8

1998

7.2

1979

7.3

1994

6.7

1987

7.2

2000

5.8

2004

6.0

1989

7.4

2007

6.0

2003

7.4

1983

6.6

1991

7.3

1977

7.3

2005

10.0

1950

7.2

2006

5.3

2019

7.2