2011

6.7

2009

5.5

2018

5.4

2007

7.0

2004

8.1

1978

0.0

1990

7.4

1983

7.8

2008

6.7

2023

7.1

1984

8.4

2008

5.4

1965

7.2

1999

7.2

2019

7.3

2007

7.6

2009

6.9

1995

7.0

2015

5.3

2008

4.8