2000

6.1

1986

7.7

2016

7.5

2005

8.2

1993

4.0

1994

8.4

2011

8.3

2014

7.9

2008

7.6

2002

6.7

2002

2.0

2021

6.5

1989

8.0

2012

7.2

1981

5.4

1991

5.6

2019

7.8

2016

7.2

2020

5.8

1998

5.2