2000

6.4

2014

5.0

1934

6.1

1996

6.3

1993

6.2

2016

6.6

1987

6.9

1978

7.2

2002

6.5

2018

6.8

1989

7.0

1962

7.7

1979

7.7

1998

6.3

1993

7.0

2010

5.7

1971

7.4

1987

7.1

1994

5.9

2003

6.3