1989

9.3

1960

6.7

1959

8.2

1962

6.8

1999

7.2

7.8

1972

6.4

2007

8.1

1996

6.0

1970

7.4

1973

7.5

1992

6.4

1991

5.3

1964

7.0

2006

7.0

1973

6.2

2015

5.3

2010

7.1

1970

6.1

1890

4.9