2017

7.7

1992

6.8

1988

8.0

1978

7.5

2013

7.1

2004

8.1

1984

7.5

2000

8.0

2004

8.2

2017

6.4

2013

7.5

1966

8.0

1982

7.6

2024

7.6

2016

6.5

2009

7.1

2016

5.8

2018

5.0

2009

7.7

2011

7.2