1996

8.7

1991

7.7

2014

4.0

2019

4.3

2019

8.4

1976

6.0

1965

5.5

1999

7.3

2007

7.6

1972

6.9

2002

8.6

1987

7.1

2003

7.8

1984

7.4

1998

0.0

1992

6.0

1996

7.1

2002

8.1

2010

7.9

2013

7.9