1999

7.9

1987

7.6

1999

5.6

1973

7.0

1996

7.3

1996

7.6

2003

7.8

1941

8.0

2013

5.7

2005

6.7

1984

7.0

2004

7.2

1998

7.7

1996

6.9

1986

7.8

1962

8.0

1957

8.1

2011

0.0

1928

0.0

2006

7.0