1970

7.1

1952

6.8

2016

6.2

1957

5.8

2004

7.1

1991

7.1

2005

7.1

2000

7.6

2024

4.0

2021

6.9

1984

7.2

1987

7.3

2003

6.3

1992

6.6

2000

7.1

1993

7.9

1998

7.5

2001

7.1

1978

6.3

2008

7.3