2005

7.5

2005

7.8

1989

7.2

1984

8.4

2003

7.0

2005

7.0

1991

7.6

1973

7.0

2000

8.1

1979

7.0

1994

8.5

2019

7.3

1975

8.0

1993

6.6

1993

7.9

1980

7.1

2007

7.6

1992

6.9

2002

6.5

1998

7.3