2005

7.1

2007

4.0

1989

5.5

1999

6.7

2011

0.0

2013

7.1

2007

8.1

2005

7.1

2025

5.0

2001

7.6

1990

7.3

2006

7.8

1998

7.4

2001

6.1

2003

5.8

2005

6.0

2004

6.2

1997

8.0

2000

7.6

2020

8.2