2001

7.6

2006

8.2

1962

7.9

1994

4.5

1970

2.8

1993

7.4

1968

4.2

1996

6.7

1991

6.8

1958

7.2

1998

7.2

1995

7.4

2017

7.2

2016

10.0

1951

6.5

1975

6.6

1952

5.3

1939

7.2

1946

7.4

2002

7.3