2003

7.1

2009

7.4

2010

7.2

1990

8.0

2021

7.2

1986

7.4

2008

7.5

1998

7.2

1989

8.3

2011

8.5

2019

8.2

1985

7.8

2005

8.1

2006

7.9

2020

7.4

2020

8.2

2011

7.7

2016

8.5

2016

7.9

2006

7.0