1979

7.3

2008

4.8

1999

1.8

2014

7.6

2014

0.0

1990

7.5

2002

7.2

1994

7.4

2021

6.5

2019

6.7

2012

6.9

2014

5.5

2011

4.3

2017

3.6

2019

1.3

1989

6.6

2005

6.2

1996

4.9

2009

3.9

1974

6.2