1966

7.2

1962

7.3

2001

7.8

1999

5.7

1988

7.5

1964

7.6

1995

6.6

1942

7.5

2012

5.0

2023

7.1

2007

6.9

2017

6.0

1967

7.0

1991

7.7

2023

6.4

2020

6.3

2016

6.3

2014

6.5

1981

6.5

2002

6.2