2018

6.6

1992

7.0

2006

7.6

1988

5.0

2008

6.3

1973

4.7

2017

7.3

2016

7.1

2002

6.8

1977

5.0

1980

5.8

2006

7.3

2007

6.0

2023

7.4

2017

6.8

1992

7.4

1979

6.9

1991

7.9

1976

6.6

1989

6.1