1987

6.9

1984

6.2

1963

2.3

1991

2.5

2008

6.4

1957

6.2

2006

6.9

1997

7.0

2013

0.0

2012

8.2

2025

8.0

2010

7.3

2011

6.2

2022

7.7

1977

6.8

1998

6.0

1974

0.0

1936

5.6

2020

6.6

2024

8.0