1991

7.6

1993

8.2

2014

6.2

2007

5.3

2007

7.0

1985

6.6

6.0

2013

10.0

2019

7.5

4.0

2021

6.9

1995

8.0

2013

6.0

2020

5.5

2017

10.0

2022

7.0

2002

2.7

2009

9.3