2000

6.4

1994

7.4

1989

9.3

1964

7.0

2001

5.2

0.0

2013

7.5

2014

6.3

1978

5.9

1996

6.0

2018

6.8

2018

6.6

2003

6.0

1959

6.2

2010

5.9

1987

6.0

1984

7.2

2016

6.4

1965

6.8

2011

5.4