2009

6.7

1977

6.6

1995

4.6

2019

7.3

2008

5.6

2006

7.3

1954

7.9

1996

6.9

1978

6.3

1902

7.9

2017

6.3

5.9

1962

7.8

1997

7.6

1986

6.0

2001

7.1

2015

5.1

1965

7.7

1992

7.4

1992

7.5