1993

7.6

2003

7.8

2006

7.0

2001

7.9

1990

6.7

1988

7.2

1998

7.3

2008

6.5

2004

7.5

2007

7.0

2020

5.4

1986

0.0

2023

7.3

2004

6.8

2023

10.0

0.0

2023

10.0

1991

7.1

2011

7.5

2018

6.9