1993

5.4

2019

6.3

2021

5.6

2013

6.1

2013

7.0

1962

7.6

1964

6.4

1968

5.9

2011

5.7

1984

7.2

1976

7.1

2015

6.6

1970

6.0

1936

7.4

2003

6.9

2024

5.2

1994

5.3

2020

6.7

1971

7.7

2024

6.8