1966

3.5

2016

2.5

2008

7.5

1972

7.9

2004

5.8

2012

6.0

2000

6.3

2008

6.3

2000

6.7

2000

7.0

1974

5.5

2003

5.1

2020

5.3

1998

7.1

2002

7.6

2021

5.8

1985

7.2

1934

0.0

1989

0.0

1982

7.8