1990

7.0

2017

6.1

1976

6.7

1981

7.5

2024

9.1

2005

6.2

1976

8.0

2003

7.7

1972

7.9

2024

6.7

2008

6.7

2015

7.0

2007

6.7

2003

7.7

1997

7.0

2018

8.7

2023

9.7

1993

5.6

1995

6.4