1993

6.6

1998

7.3

1984

7.8

2021

6.7

1981

6.3

1980

5.0

1976

0.0

2005

4.0

2007

6.6

1990

6.0

1967

7.8

2019

6.2

1999

6.5

1994

10.0

1996

7.3

2019

8.0

2019

8.1

2014

6.7

2020

7.8

2006

7.4