1974

6.6

2003

6.0

2000

6.8

1989

7.2

2012

7.5

2003

6.7

1960

7.0

2013

4.3

2019

0.0

1968

0.0

1998

7.4

1965

8.0

1977

6.9

1991

0.0

1986

7.2

1980

0.0

1980

0.0

1980

0.0

2025

0.0

2012

0.0