1970

7.2

2005

4.0

1964

7.1

1971

0.0

1997

6.1

2007

4.0

2020

0.8

1980

6.6

1976

10.0

2002

6.8

2005

5.3

2003

5.9

2018

4.7

2004

5.5

2013

8.5

2005

6.3

1996

6.4

1988

6.3

1992

7.5

2020

6.3