1999

8.4

2004

5.6

2013

5.5

2007

6.5

1968

7.4

2022

0.0

2016

0.0

2005

5.6

2006

7.3

2017

5.7

2006

7.0

2003

8.3

1995

7.3

2023

10.0

1957

7.2

2000

7.6

1960

8.1

1995

7.3

2003

7.3

1990

7.7