2000

7.3

1991

5.4

1996

5.3

2021

6.5

2005

6.7

2014

1.0

2019

6.1

2004

8.0

2005

7.4

1993

7.0

2018

2.0

2006

0.0

1998

7.4

2007

5.6

1987

6.4

2006

6.8

1988

6.7

2002

6.3

2016

6.0

1980

7.9