1957

7.9

2006

7.2

1962

6.9

1959

8.1

1973

6.2

2000

7.1

1902

7.9

1970

6.9

2018

6.5

2013

6.1

2014

5.7

1964

7.0

2015

7.4

1989

7.3

1985

7.3

1975

7.0

1990

6.4

2024

8.1

2025

7.2

2024

7.0