1971

6.6

2003

6.8

2024

7.5

1993

6.1

1992

7.1

1999

7.7

1963

7.2

1977

7.6

2020

6.7

2004

7.8

1971

6.7

2016

8.4

2024

7.7

1988

6.9

1985

7.8

1952

8.1

2009

6.3

2013

6.6

2016

7.4

2012

6.6