2000

5.2

2002

6.0

2005

6.3

1993

6.1

2002

6.1

2014

6.0

2006

6.9

2000

6.8

1996

7.1

2025

7.8

1996

5.9

2000

6.0

1946

4.5

2000

5.8

1999

7.0

1970

6.8

2017

5.8

1998

6.7

1995

6.3

2008

6.7