I'm working on a science project where we have to research a product made from consumptive resources; I chose shampoo, and we need to know the average usa and global per captia use of the product we choose. Everywhere I look only gives me information on shampoo use in India, so if anyone could help me and/or provide me with references that would be great. Also, if anyone knows anything about the accumulating effects of shampoo consumption and/or the projected consumption based on population growth that would be very helpful too!