1990

6.9

2003

7.7

1990

7.8

2017

8.2

2016

7.5

2016

6.8

1984

8.4

2009

8.3

2001

7.7

2024

7.6

2012

7.7

2014

7.9

1999

7.5

1998

6.8

1994

7.8

1984

7.8

1983

7.9

2010

7.4

1979

7.4

2020

8.3