1984

8.1

2002

6.1

1998

7.2

1975

7.3

1961

6.9

2024

6.4

1999

5.0

1977

6.8

1971

7.1

2004

6.0

1997

6.6

2006

5.9

2001

8.0

1965

7.2

1963

5.8

1970

7.1

2005

5.9

2001

6.6

2024

0.0

2002

5.6