2005

7.0

1947

6.4

1969

7.1

1984

7.5

2001

4.3

1978

0.0

2006

5.4

2006

6.0

2007

6.9

2003

7.2

2011

6.6

2005

7.5

2000

7.1

2005

5.6

1992

7.4

1990

4.0

0.0

2019

6.7

1999

6.8

2013

6.0