1999

7.6

2008

6.4

2006

6.2

1998

6.3

2000

6.2

2003

7.1

2001

5.9

2000

5.5

1984

6.5

2014

5.8

2008

6.5

1982

7.2

2017

5.2

2005

6.2

2024

7.0

1989

6.1

1996

5.9

1995

6.3

2002

5.1

1983

5.7