2011

6.4

2014

6.6

1992

5.9

2006

6.3

2006

6.1

2021

10.0

1996

5.7

2007

5.8

2005

6.9

1994

6.5

2016

6.3

2015

6.0

1993

7.8

2004

7.0

1981

7.3

2020

7.3

2001

7.5

1997

7.6

1998

7.3

2010

7.1