1952

7.9

1994

5.3

1986

5.2

2004

6.5

2014

5.9

2003

4.9

1962

7.3

1978

6.8

2016

5.7

1967

7.4

2017

6.9

2004

7.1

1972

7.2

1985

7.3

1989

9.3

1966

7.1

1963

7.1

2010

6.5

2009

4.8

1952

7.4