1984

0.0

1996

8.0

2012

9.3

2019

8.7

2010

6.8

2014

8.5

2023

6.3

2005

9.7

2003

7.0

1967

5.7

2005

7.6

2014

6.1

2018

8.7

1979

5.9

2019

7.0

1955

8.4

1991

6.0

2025

6.2

2009

6.1