1954

6.2

2018

5.6

1975

5.8

1984

2.0

2019

7.1

1990

9.0

2005

6.3

2002

7.1

1928

0.0

2007

6.1

2006

7.8

2008

6.0

1996

8.0

2014

6.9

2014

3.1

1977

7.3

2009

5.3

2002

5.9

2019

7.8

2004

7.7