2006

6.5

1964

6.6

2004

5.9

2006

5.5

2013

5.6

1975

6.0

2002

6.8

2013

4.5

1996

6.8

2004

6.1

1988

6.1

2008

7.4

2008

6.9

2013

6.0

2006

7.2

1946

5.0

2023

7.8

1954

7.6

1977

0.0

1990

0.0