2015

7.2

1989

7.4

1995

7.0

2007

6.8

2004

7.5

1973

6.7

1984

6.0

2009

4.6

2014

6.8

1993

6.7

1990

7.0

1974

6.5

1970

6.5

1976

6.0

1987

7.8

2025

0.0

2020

7.0

2021

4.7

2024

8.9

1980

5.3