1970

5.0

2007

6.5

2023

7.1

1982

7.6

2006

7.4

1976

7.8

2016

6.4

7.1

1984

7.5

2017

6.4

0.0

2019

6.7

1989

5.5

2014

4.7

2011

0.0

2019

0.0

1992

6.9

1993

6.9

2002

7.4

2017

6.7