2014

7.8

1986

8.3

2021

7.4

1984

8.5

1998

6.8

2017

7.9

2008

7.6

1987

8.4

2012

6.8

2002

7.5

1986

8.4

1975

7.3

2006

8.6

2000

7.5

2006

7.5

1977

8.2

2018

8.2

2012

8.4

2009

8.7

2013

7.4