1998

7.5

1993

7.8

1965

7.1

1994

5.7

1964

5.7

2017

7.3

1988

7.5

1987

6.5

1977

5.9

1999

6.5

2019

6.3

1939

5.4

1998

5.3

2007

0.0

1948

6.7

1995

2.8

2017

5.9

2006

4.4

2003

5.3

2008

6.0