2004

7.2

1977

6.0

2017

7.1

2015

5.6

1985

10.0

2000

8.0

2002

7.5

2013

6.6

2015

7.1

1970

6.1

10.0

2019

10.0

2021

6.9

2007

6.7

2020

5.0

2016

7.0

0.0

2009

8.3

2015

6.5