1979

2.0

2007

4.2

2009

2.7

2008

5.0

2001

3.7

2018

4.9

1977

5.0

1979

1.0

1982

2.0

0.0

2007

4.7

2008

6.3

2000

7.0

1975

6.1

1969

6.0

1965

4.0

2024

6.1

2015

5.3

1925

0.0

2024

8.2