Produce a variety of charts using this spot and multivariate charting tool and then bookmark, print, send or save them. We currently cover precious metal prices; base metal prices; warehouse levels; and world currencies. Spot charts are available for precious metals for one to four days. All other charts are available for seven days to five years, and in some cases up to fifteen years. This multivariate charting (All Other Charts) allows up to four series to be charted at once - you can combine any variety of variables to produce charts that showcase commodity and mining trends.