1984

7.6

1994

6.7

1976

7.2

1975

0.0

2014

4.7

1993

6.4

2009

6.5

2000

7.7

2005

6.6

1946

8.3

2007

10.0

2006

7.0

2009

6.4

2000

7.1

1987

7.6

1994

6.6

1931

7.1

2005

6.2

2021

6.6

1999

7.6