1984

7.5

2009

8.0

2007

7.6

2007

6.2

2014

6.8

1982

7.1

1978

5.2

2015

7.8

2009

7.3

2022

6.0

2024

7.2

2004

10.0

2023

4.9

2010

6.0

2015

6.9

2002

6.5

1963

0.0

2024

7.8

2011

7.7

2005

7.3