1999

7.5

1979

9.6

2019

7.2

2006

8.2

2015

9.6

1985

7.6

2014

6.4

2012

6.4

2004

8.6

1992

6.9

1982

9.2

2011

7.0

2009

7.7

1996

8.1

2012

7.5

1996

9.0

1987

7.8

1999

6.3

2023

6.2

5.8