1932

4.0

1990

8.0

2006

7.4

1972

7.1

2015

6.0

2007

6.7

1976

0.0

1977

7.0

2009

6.7

2021

4.8

2008

7.3

2008

6.7

2003

5.3

1969

6.6

1999

4.6

1999

7.4

1999

6.4

2005

6.3

1991

7.2

1998

6.7