1989

8.0

1999

7.4

2005

7.3

1977

6.5

1992

0.0

1994

0.0

2009

6.3

2023

6.4

2018

7.0

1986

7.9

1966

7.3

2001

6.6

2003

7.1

1983

7.2

2022

6.7

1997

7.3

2003

6.0

1999

7.8

1976

8.0

2000

7.0