2018

0.0

2005

6.8

2006

7.0

1992

7.4

1987

7.1

1990

6.7

2000

6.5

1999

5.6

1924

6.8

1960

6.1

2007

6.2

1969

6.4

1939

6.7

1957

6.8

1967

6.5

1974

7.5

1964

6.1

1958

6.6

1970

5.8

1972

4.5