2006

7.9

2016

6.8

2015

7.4

2011

6.2

1989

8.3

1993

3.7

1990

6.9

2021

9.0

1984

7.5

2008

8.0

2013

7.6

2019

7.3

1986

5.3

1999

7.5

1999

7.2

2019

8.8

1983

6.7

2015

6.7

2014

7.5

2002

4.0