1989

8.0

2005

7.3

1977

6.5

2009

6.3

1997

7.5

2001

2.0

2021

10.0

2023

6.4

1992

0.0

2012

0.0

1991

6.9

2018

8.1

2003

6.0

1997

7.3

1999

7.8

1976

8.0

2000

7.0

1990

7.1

1969

8.2

1976

7.4