2010

6.4

2011

6.7

1994

6.4

1994

6.4

2002

7.7

1973

7.5

2021

6.3

1996

6.3

1995

6.9

2002

6.7

1997

7.5

2005

7.2

1999

6.9

2003

5.0

1993

7.5

2001

6.7

2000

6.8

2001

6.7

1986

6.3

2008

5.7