1987

7.1

2020

7.5

1972

5.0

1995

9.6

2018

6.3

2014

6.6

1997

6.3

2020

4.0

1954

6.2

2011

7.2

2021

10.0

2002

5.9

2012

7.5

2021

9.8

2002

5.4

4.5