1964

7.1

2001

7.3

2007

4.0

1970

7.1

2005

5.3

2002

6.8

2017

1.0

2003

6.0

1988

6.2

2017

5.0

1966

6.1

1967

6.9

2020

6.4

1997

6.0

1980

6.6

1994

7.5

2013

4.5

1991

5.2

0.0

1969

6.5