1992

7.0

1984

5.5

2003

7.3

2015

7.4

1973

7.4

2019

6.1

2007

6.9

1999

5.7

2014

5.9

1975

6.0

2014

6.5

2017

7.1

2015

6.3

2008

8.0

2022

6.8

2012

4.9

1995

6.6

1971

6.7

2005

5.8