1964

7.3

2003

6.3

1989

6.4

2010

5.9

2004

4.8

1998

6.0

1941

7.4

1949

7.7

2000

5.1

2007

6.5

2002

7.4

1946

7.6

2005

7.1

1988

5.8

1962

7.7

1952

6.7

2018

7.1

2008

6.1

2004

7.2

1989

7.3