1992

7.1

2014

3.8

2008

7.4

2004

5.9

1998

6.8

2007

7.2

2018

6.4

2000

6.5

2023

0.0

2008

6.3

2001

7.9

1998

7.1

2006

6.6

2002

7.3

1950

8.3

1950

8.0

2015

6.0

2009

6.4

2009

6.4

2001

7.9