1971

7.2

1989

5.7

2017

6.6

2015

7.6

2015

6.0

2005

6.5

2008

8.0

1977

6.7

2003

6.6

1978

6.3

2019

5.7

1981

5.0

2024

6.0

1963

5.9

2013

4.8

1899

2.3

1998

6.0

2011

6.1

1969

5.0

1929

5.0