1967

6.4

2020

7.0

1968

6.9

2008

5.2

2021

7.4

1964

7.0

2006

9.8

1965

6.8

1969

7.3

2010

6.6

1998

6.0

1982

6.5

1945

7.6

1970

6.1

1974

7.0

1994

6.8

1942

5.8

2004

7.1

2005

9.9

1990

6.5