1998

6.2

2020

6.1

2017

8.2

2014

5.8

2020

7.4

1988

5.5

2023

7.0

2003

5.2

2002

6.4

6.0

1975

4.5

1967

6.2

1987

4.5

2005

8.5

1982

5.8

2012

9.4

1965

5.0

2020

7.2

2016

7.0

2014

5.5