2003

7.7

2019

5.3

1983

5.8

1939

6.1

1989

5.1

2012

9.3

2009

4.8

1968

4.7

2007

10.0

2016

7.5

1976

6.0

1994

5.7

1999

7.6

2007

5.3

2007

7.0

1996

7.0

1944

6.7

1990

7.9

2012

7.0

2000

7.1