1967

6.5

1982

5.8

2005

6.5

1963

5.9

2021

9.2

2013

6.1

2020

9.8

2011

7.5

2023

10.0

6.1

2017

6.0

1972

4.0

1971

6.1

1997

4.6

2021

7.7

1989

6.0

1969

6.6