2011

8.0

1997

7.0

1987

6.9

2006

6.9

1991

2.5

1957

6.2

2021

0.0

2024

8.0

2008

6.4

1974

0.0

1963

2.3

2010

7.2

0.0

2022

7.6

2012

8.2

1984

6.2

2011

6.2

1998

6.0

1978

6.7

2016

6.0