1999

1.5

2013

10.0

2015

5.7

2015

8.0

2020

7.2

2015

8.0

2004

7.2

2005

6.4

1995

6.4

2005

7.0

1989

6.1

2013

3.0

2003

5.6

2007

6.9

2022

5.8

1980

6.5

2015

1.5

2005

6.5

1998

6.2

2020

10.0