1986

7.0

1976

7.0

1972

7.8

1951

8.7

1993

8.0

2009

6.0

1990

7.4

2001

7.6

1999

7.9

1982

5.4

2006

7.0

1998

6.2

1991

7.2

1999

7.9

1985

5.2