1993

6.5

1980

5.9

2003

6.8

1989

5.5

1982

6.7

1969

6.6

1995

4.6

2016

6.7

2019

6.6

2012

5.8

2023

6.4

2005

5.2

1949

5.1

2008

5.4

1972

6.6

2013

6.5

2011

7.3

2018

6.2

2003

7.3

2011

6.6