Although the U.S. population comprises only 4.5% of the planet’s human inhabitants, Americans account for a disproportionate share of the world’s pharmaceutical sales:
	90% of the world’s stimulants
	63% of the world’s antipsychotics
	51% of the world’s antidepressants
	41% of the world’s anti-epileptics
	[Source of sales data:  IMS Health]