2000

7.4

1997

8.2

1999

8.5

1997

7.4

1986

7.1

1928

8.0

1993

7.0

2005

7.7

1991

6.5

1964

7.5

2006

6.9

2006

7.5

10.0

1991

7.6

2006

7.6

2024

10.0

1996

7.4

2014

5.8

2024

0.0

1998

6.6