2007

6.5

2006

7.0

1988

5.0

2003

6.9

2000

6.8

2010

5.9

2014

5.8

2017

6.3

1964

7.4

2004

8.4

1992

3.8

2006

6.1

2025

7.4

2008

6.6

1987

4.0

2020

6.8

2021

4.8

1964

5.0

1998

6.8

2013

0.0