0.0

2001

7.5

2008

6.2

2019

7.0

2012

9.3

1981

7.4

1996

4.4

2014

6.0

1989

6.1

2014

4.8

1972

7.9

1973

6.9

2015

4.4

1999

8.4

2025

5.8

1970

8.2

2019

8.7

1959

8.0

1979

6.8