2018

8.1

2014

5.7

2011

7.1

2008

7.7

2011

8.1

2009

8.0

2010

7.9

2000

7.6

2024

9.0

1994

5.5

2009

0.0

1999

5.0

1992

6.5

1984

6.7

0.0

2007

6.5

2002

6.6

2003

7.8

2021

6.8

2019

7.1