2005

5.2

1984

7.2

1980

7.0

2001

7.0

1994

6.6

1991

5.9

1969

6.6

2017

6.2

2023

6.9

2003

7.3

2013

6.2

1993

6.8

1995

5.6

1996

6.9

2022

6.5

1966

6.2

1988

4.5

1989

5.5

1967

6.1

1989

6.2