Johnson Matthey's market reviews of supply and demand for the platinum group metals are published twice a year and are free to download.
Charts of Johnson Matthey’s latest estimates of supply and demand of platinum, palladium and rhodium in oz troy that can be cut and pasted into documents.
Tables containing Johnson Matthey’s estimates of supply and demand dating back to 1975. The data is in oz troy and metric tonnes and can be viewed in PDF or Excel.