2013

4.9

1998

6.6

1960

8.4

1994

8.5

2022

7.7

1979

8.1

2007

8.1

1972

8.7

1993

7.4

1984

7.1

2002

7.3

1962

8.0

1989

7.0

1992

7.3

1986

7.6

2006

6.5

2010

7.6

2002

8.0

2009

7.6

1936

8.3