2003

5.4

2012

6.3

1984

6.1

1970

7.7

1998

6.2

2010

6.6

2003

5.8

1990

6.9

2013

6.8

2009

8.5

1980

6.2

2021

9.8

1987

8.0

2023

9.2

1957

6.4

1993

7.7

2017

7.0

1932

6.7

2017

6.3

1984

7.6