1998

6.1

2006

7.7

2002

7.4

1984

7.2

1997

7.7

1989

6.0

2005

7.1

2022

7.3

2007

6.4

1999

7.6

2022

6.3

1977

7.0

1973

4.2

2022

6.4

1946

6.6

2009

6.3

1985

6.9

2014

5.4

2017

6.6

2016

7.3