2006

6.6

2005

8.3

2003

6.8

2013

7.1

1996

8.0

2015

6.6

1999

6.8

2015

6.7

2009

6.2

1972

6.6

2011

6.3

1989

6.2

2017

5.8

2002

6.9

1994

5.9

2009

7.6

1989

5.8

2024

7.4

2013

6.1