2004

6.6

1967

5.3

2010

5.6

1998

7.8

2003

6.1

2002

6.0

1998

6.1

1990

6.6

1971

7.5

2008

7.9

1997

5.6

1959

8.1

2011

7.5

2005

5.7

2011

5.2

2012

6.4

1965

7.9

2022

5.6

1997

7.7

1983

6.3