1958

7.7

1984

8.0

1998

7.4

1996

6.8

2014

6.8

1969

0.0

2001

6.7

2020

6.8

1913

3.7

1968

7.4

1993

5.3

1988

7.4

2006

6.7

1987

6.6

1996

6.1

1998

5.9

1993

7.9

1970

4.6

1981

0.0

1999

7.6