2003

6.6

1995

7.3

1988

5.8

1987

5.4

2002

6.4

2002

6.9

1950

6.8

1942

6.2

1938

4.5

1934

4.7

2014

5.4

1966

4.5

2000

7.1

2018

6.9

2002

5.1

1996

6.7

2013

6.9

2007

5.0

1941

5.7

2020

7.3