1994

7.5

1999

7.0

2012

6.1

1998

6.4

1996

7.3

1994

6.8

1990

6.9

2006

6.6

2016

4.6

2023

5.9

1993

6.5

1975

6.2

2008

7.2

2016

0.0

2014

5.2

2003

6.3

2005

6.2

2016

5.6

2007

6.7

2007

6.9