1991

7.6

1984

8.0

2003

6.7

1989

5.9

2008

7.3

2010

7.8

2009

7.8

1993

7.0

1986

7.1

1996

7.3

2000

6.0

1998

5.8

2019

6.1

2004

6.0

2002

7.4

2021

7.9

2007

7.5

2023

0.0

2016

7.2

2012

5.6