1998

6.9

1952

6.7

1988

6.2

1995

4.6

1989

5.5

1999

6.2

1981

7.0

1972

7.9

1947

7.5

1988

6.5

2001

4.9

1998

6.0

1969

7.1

1979

6.7

1986

6.7

1965

6.8

2013

6.4

2001

5.4

1954

6.7

1990

5.3