2009

6.7

1989

5.8

2002

5.6

2001

5.8

2014

7.3

2021

1.5

1988

7.5

2002

6.3

2006

6.8

1988

6.7

2004

6.8

1993

7.0

2016

6.0

1980

7.9

2000

6.2

1996

5.9

1997

6.5

2003

6.5

2024

0.0

1990

6.4