1990

4.4

2009

4.6

2010

6.1

1989

5.8

2009

8.5

2001

6.6

1985

6.4

1988

5.5

2024

8.8

2016

6.5

2020

6.4

1985

6.1

1982

6.9

2019

5.7

7.0

2022

8.6

2011

9.8

1991

5.8

2022

5.9

2004

4.9