1996

7.0

1973

3.5

1970

3.9

2001

7.4

1991

5.9

2007

6.4

2006

6.3

2002

6.3

2003

6.0

1995

6.5

2004

5.3

2016

4.0

2021

4.6

2015

5.4

1991

4.6

2016

6.3

1978

6.1

2004

5.1

2014

4.8

2022

5.6