1988

6.7

2015

5.4

1975

0.0

1973

1.0

2004

4.2

2007

5.9

1977

2.3

2019

2.7

1973

7.2

2004

3.9

2006

7.0

1999

6.8

1985

3.5

2005

6.3

2002

6.0

2004

7.2

2006

7.0

2004

4.6

2003

6.0

2005

6.0