1990

6.9

2014

6.3

2003

6.8

2017

7.3

2007

6.1

1986

6.7

1989

7.0

2003

7.9

2007

6.4

2004

7.5

1976

4.1

1953

6.3

1998

9.4

2001

0.0

2018

0.0

2008

5.1

1944

6.9

1987

7.3

2011

9.5

1973

7.9