1967

7.6

1999

6.9

1984

7.1

2010

7.2

2013

5.0

1995

8.2

1978

8.2

2015

7.3

1969

5.0

2002

7.5

2022

6.5

2020

0.0

2011

5.5

1986

8.0

2002

7.5

1988

7.8

2004

7.8

2006

7.1

2002

8.0

1976

7.6