1995

7.0

1996

6.2

2010

0.0

2017

3.0

2020

2.3

2017

4.7

2017

4.9

1991

7.2

1959

5.7

1984

5.2

2002

5.4

2010

4.2

2014

6.0

2000

4.8

2021

0.0

2017

5.4

2002

4.6

2006

5.1

2016

5.6

2009

5.9