1990

6.6

1989

5.8

2006

6.7

2018

6.2

2003

7.2

1997

8.4

1984

7.7

2002

7.4

2020

10.0

2009

4.0

2013

5.8

1994

5.5

2021

10.0

1994

7.7

2024

5.7

1978

7.0

2005

8.7

2022

6.5

2004

8.3

2021

0.0