1980

5.6

1997

9.0

1999

6.3

1987

7.1

2008

4.1

2009

8.0

1974

7.9

2004

6.2

2003

5.3

2018

7.6

2000

6.6

1980

7.7

2021

5.1

2016

5.9

2024

7.0

2025

0.0

2023

7.0

1981

6.1

1994

5.1

2024

0.0