1974

6.6

2013

6.0

2005

8.3

1995

7.3

1984

7.5

2002

7.4

1989

7.5

1952

4.3

2016

6.1

2015

5.8

2019

7.6

2012

8.1

1993

8.6

2013

7.6

2014

7.4

1979

6.8

2009

6.0

2022

7.0

1973

7.2

1979

7.0