2014

5.7

2016

6.2

1970

6.3

1966

8.5

2017

6.5

5.8

1980

7.9

2015

7.5

2003

6.8

1995

6.4

1960

7.8

1967

6.1

1990

7.4

1996

7.9

1992

8.1

1999

8.4

1997

7.5

1998

8.2

1960

7.5

1964

8.1