2005

7.0

1996

6.6

1969

7.1

1971

6.4

2000

8.0

1992

7.4

1992

3.8

2000

7.5

1987

7.6

2000

6.9

1945

8.0

1990

5.8

2006

6.7

2007

6.4

1989

7.1

1994

7.5

1994

8.5

2017

0.0

2025

6.0

2001

1.0