Boston Consulting Group on Exploration and Mining (current affairs and future trends)

Yes, these are hard times (although I just started a new consulting project today and will likely add another in the next week or so) but it’s time we leave the gloom and doom talking and start thinking (and acting) on ways to improve.
I always like to pick ideas from well thought, well structured texts. I have just come across some recent (2015) BCG publications (https://www.bcgperspectives.com) on the current state of affairs in Exploration and Mining:

A couple of other interesting documents are not available in pdf format but you can read them at:

Thanks to BCG for publishing these reports.

Mineral commodities 2013 total mined volumes and values, average prices

Commodities 2013

Diamonds mined in 2013 total 14 bn USD. How do they compare with other mineral commodities?

Rather than using somebody else’s compilations, I prefer to check values published by (commodity) specialised international organisations or public companies (OPEC, World Gold Council, KPCS, USGS, etc.). After some work, I have arrived to the estimates presented in the table to the left.

Is the ranking surprising? Any obvious error on the table’s values? Comments and suggestions (always) welcome. Yes, reality changed a lot since 2013 (only 18 months ago).