1895

5.5

1928

6.0

1992

7.2

1987

6.2

2007

8.2

2018

7.5

1970

6.3

1965

6.7

1980

6.1

2009

6.8

1972

7.0

1952

7.0

1966

6.5

1980

7.7

2000

5.9

2000

6.9

1993

7.2

2015

7.0

2010

5.0

2017

6.6