1966

6.4

2023

9.2

2009

6.8

1999

4.3

2005

5.6

2014

5.3

1971

7.5

2005

7.1

2019

8.0

1984

7.0

1995

6.2

2006

6.2

1981

6.9

1990

6.9

2017

6.3

1973

7.5

2003

5.3

2003

7.2

2016

6.3

1996

6.6