1993

5.3

1951

6.2

2020

3.3

2020

6.7

2003

6.0

2001

6.1

2007

5.4

2004

6.4

1966

7.5

2004

7.0

1999

6.8

1985

5.8

1964

7.4

2007

6.3

1984

7.5

1974

7.2

2002

6.0

1970

7.1

2008

7.1

2016

5.5