[gold_bid], [gold_ask], [gold_high], [gold_low], [gold_dollar_change], [gold_percent_change],
[silver_bid], [silver_ask], [silver_high], [silver_low], [silver_dollar_change], [silver_percent_change],
[platinum_bid], [platinum_ask], [platinum_high], [platinum_low], [platinum_dollar_change], [platinum_percent_change],
[palladium_bid], [palladium_ask], [palladium_high], [palladium_low], [palladium_dollar_change] or [palladium_percent_change]