2017

8.0

1960

7.4

2018

8.6

1996

7.7

2008

8.3

2014

7.2

2001

7.6

2012

8.6

2015

7.0

1998

7.5

2012

6.3

1979

7.8

1991

8.1

2005

7.0

2021

7.6

2015

7.7

2001

7.6

2005

6.8

1984

8.4

2014

8.4