2000

6.1

2016

5.1

1998

6.3

1997

6.1

1991

7.7

2003

5.7

1973

6.9

1999

7.1

2022

5.0

2003

6.6

2000

7.0

1928

0.0

2008

6.9

2002

5.9

2006

6.4

2006

5.4

1999

6.9

1998

7.4

2003

5.0

2007

5.2