1961

5.7

1962

6.9

2020

7.0

1974

7.0

1968

6.9

1964

7.0

1999

7.2

2010

6.6

1994

8.5

1979

7.0

1990

6.1

1982

6.5

2009

6.4

2000

6.7

2022

7.7

2013

7.0

2014

6.6

1985

6.5

1964

7.1

1920

7.9