2014

6.7

1989

6.6

2006

5.1

2007

5.6

2019

0.0

2005

5.6

1970

4.1

1966

6.4

1950

7.6

2008

7.6

1999

6.7

2001

6.0

1978

5.8

2022

0.0

2013

0.0

2008

6.3

2004

7.2

2016

7.2

1972

7.1

1984

7.5