1965

6.9

2018

6.4

1949

7.9

2006

6.1

1958

7.8

1997

6.5

1999

6.8

2015

5.6

2014

0.0

1990

6.8

1996

6.0

2002

6.7

1986

6.2

2016

6.8

2014

3.3

2005

6.9

2016

7.9

2001

5.1

2018

6.4

2018

6.0