1964

7.1

1970

7.1

2001

7.3

1986

6.1

2003

5.9

2003

6.4

2014

6.7

2003

5.3

2002

6.8

1988

6.3

1995

4.7

1996

5.3

1903

5.5

1984

2.5

2020

0.0

2013

6.1

1982

5.7

2020

7.3

0.0

1964

5.7