2010

7.8

2016

10.0

2023

8.3

2008

8.5

2003

7.0

1981

7.9

1994

8.7

1982

7.9

2002

7.3

2012

7.2

2005

7.7

2000

8.2

1994

8.5

1999

8.4

2018

6.9

2006

7.9

2010

7.8

2015

6.7

2007

7.2

1980

8.4