1949

6.2

2021

6.1

2003

6.3

1994

6.2

2002

6.5

1998

6.0

2016

6.7

2006

5.6

2001

9.9

2017

5.9

1996

6.5

1992

6.4

2010

6.2

2003

5.5

2004

6.6

1996

6.3

1999

6.4

2005

6.8

1989

5.7

2003

6.5