2006

8.2

2017

7.9

2011

8.3

2018

7.0

2018

7.8

7.5

2007

3.6

1972

7.7

2004

9.5

2016

7.3

2014

6.6

2021

9.8

1995

7.6

2024

7.5

2009

5.0

2001

8.1

7.0

1985

7.0

2000

6.4

1987

10.0