1964

6.0

1982

7.6

1966

7.2

1961

8.0

1957

7.8

2001

7.4

1998

8.2

1966

7.3

2005

7.1

1994

0.0

2006

6.7

2006

4.9

1996

6.2

2021

6.1

2002

8.4

1993

8.6

1996

6.8

1995

6.9

1992

7.5

1929

7.5