1990

6.1

1935

7.4

2001

6.0

1966

7.8

2005

7.5

2020

6.9

2015

5.4

1986

6.6

2002

6.3

1982

7.1

2012

6.4

1996

6.9

2006

7.0

1999

8.0

1962

7.3

1989

5.3

1963

6.5

2010

6.6

1962

7.7

1965

7.8