1993

6.1

1944

6.3

1946

5.6

1939

6.2

1970

4.3

2001

6.7

1975

7.3

1999

7.5

2003

7.4

2008

7.3

1995

7.3

1994

7.1

2002

6.7

1996

5.9

2013

0.0

2005

5.5

1999

6.2

1976

7.8

2002

7.8

1992

6.3