1993

6.0

2002

5.9

1991

6.5

2016

6.3

2005

6.8

2003

6.6

1992

5.4

1969

6.9

1962

7.3

1988

5.0

2005

6.8

2014

6.0

1942

5.4

1945

6.0

1970

7.1

1997

7.1

2002

6.3

2003

6.3

1989

6.3

1992

7.0