2009

5.6

2020

5.5

1994

8.9

2017

5.6

2003

6.4

2016

6.7

2020

5.5

2014

5.9

2013

6.2

1971

7.7

2003

9.2

2019

5.0

1992

6.4

5.4

1998

8.9

1975

6.9

1984

7.3

2020

7.1

2012

7.0