2005

5.2

1997

5.8

1999

6.4

1999

6.4

1996

7.8

1966

6.4

2002

7.1

1996

7.3

2001

7.7

1969

6.0

2022

6.0

2013

0.0

1964

6.1

1999

6.4

2001

8.0

1995

5.7

2008

6.8

2020

8.5

1965

7.4

2019

6.1