2000

5.2

1984

7.1

1964

7.4

1997

7.2

2002

7.5

2021

9.2

1952

7.9

1939

7.5

1939

7.5

1999

7.6

2009

7.1

2011

7.3

1968

6.8

1945

7.4

1962

7.5

1971

6.7

2016

7.0

1999

6.2

1999

8.4

2024

7.4