I'm not sure of the exact question, but the one-to-five ratio is moneys spent, with the expenditure on mapping and also collection of geomaterials—other data sets and so on. The exploration industry uses this data. It gives us the information to be able to say this is a good area or that is a good area, and then you invest that much more.
It's not really a return to the country; it's more just investment. That investment in turn leads to discovery and then there is a return from that discovery.
I've often asked various economists to try to make a direct link for me and to show a rate of return, and they never do that. They say it's too complicated and the links are not well enough established.