1989

8.3

1955

7.5

1983

7.2

1979

7.0

1986

7.8

1999

7.3

2002

7.1

2000

7.6

1987

7.3

2002

7.0

1999

6.9

2004

7.4

2001

7.8

1959

8.0

1972

6.7

1999

8.0

1982

3.9

2005

0.0

10.0

2023

0.0