2003

6.5

2010

8.2

1972

8.7

1989

7.8

2012

6.2

1974

6.5

2008

6.7

1995

8.4

2005

6.3

1959

8.1

1994

5.8

1971

6.4

1998

7.0

1970

6.3

2013

8.1

1968

8.1

2007

8.1

1991

5.9

2023

6.7

2010

6.0