1996

7.5

2013

6.1

2021

8.2

2015

5.1

1999

6.6

2017

6.5

6.2

2014

7.0

1974

5.7

1987

6.7

1966

7.0

2020

7.4

1975

4.9

1972

7.4

2023

5.5

1977

7.4

2009

6.2

1996

6.4

2013

7.0

2020

6.9