2017

6.4

2003

8.0

1987

6.5

2000

8.2

1994

8.3

2000

7.4

1982

6.7

1967

0.0

2015

0.0

1995

6.2

2002

6.6

2020

6.9

1997

4.5

2006

5.1

1985

7.1

1992

6.7

2003

6.8

2017

7.7

2008

4.7

2007

7.2