1981

6.0

2013

6.5

2017

6.1

2006

10.0

2005

8.3

2011

5.6

2019

10.0

2015

6.1

2005

9.9

2024

5.2

1984

5.7

1970

6.2

1967

5.0

2022

4.7

1974

4.2

2007

8.0

1995

4.0

1925

5.0

1975

6.2

2008

5.0