1991

5.2

2001

7.5

2017

7.2

2004

5.6

2002

6.9

1985

8.3

1994

7.5

2005

7.4

1955

7.5

1940

7.9

1999

7.4

1970

7.2

2016

6.2

2022

7.3

2017

6.9

2024

0.0

2004

7.2

2006

7.0

2003

6.7

2002

7.0