| Country |
2009
|
2010
|
2011
|
2012
|
2013
|
2014
|
2015
|
2016
|
2017
|
| WORLD |
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
| USA |
ND
|
55.6
|
ND
|
ND
|
ND
|
ND
|
ND
|
53.6
|
ND
|
|
Israel
|
2.1
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
|
UK
|
6.6
|
6.3
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
ND
|
|
South Africa
|
ND
|
ND
|
ND
|
ND
|
ND
|
6.6
|
ND
|
ND
|
6.1
|
|
Mexico
|
ND
|
ND
|
9.3
|
9.5
|
ND
|
8.8
|
|||
|
Venezuela
|
ND
|
ND
|
5.5
|
ND
|
ND
|
ND
|
