2015

9.1

1990

6.1

2005

7.6

2020

5.2

1976

7.5

2016

3.7

1985

6.2

2004

5.7

1995

6.7

2009

7.4

1966

3.5

2014

6.6

1988

6.0

2004

7.1

1996

7.0

2019

7.3

2016

5.7

2004

5.7

1999

6.7

2009

8.5