1967

7.7

2001

6.8

1988

7.8

2005

7.0

2021

6.9

2018

0.0

2004

9.0

2011

8.5

1958

6.7

2019

8.1

2002

7.1

2006

7.8

1986

7.5

2004

8.4

1990

7.8

2003

7.4

2013

6.7

2010

3.5

2003

0.0

2012

10.0