1946

8.3

2005

4.9

2013

3.6

1994

6.0

2000

6.0

1997

6.5

2006

6.3

2008

6.7

1998

7.3

1999

7.1

2015

6.0

2019

0.0

2019

7.3

1980

6.6

2015

4.9

2025

0.0

2006

6.5

2023

0.0

2009

7.8

1988

5.0