2002

6.5

2008

6.1

1990

7.3

1980

7.0

2019

8.2

2013

5.4

1981

8.0

1960

6.7

2017

7.3

2007

7.1

2005

5.3

2014

8.8

1958

0.0

2016

7.2

1986

5.0

2007

6.1

2001

5.5

1945

6.0

2003

6.3

2016

8.3