What does North American mixed dried fruit contain? I have a recipe for a fruit cake that uses 2lb of mixed fruit plus 11oz currants and 15oz raisins

In the UK, mixed dried fruit is usually a mixture of sultanas, raisins, currants, and chopped candied peel, with little variation. If it is the same in America then I don't understand the addition of more currants and raisins, which would work only to halve the proportion of candied peel and sultanas

Is mixed dried fruit composed differently in the US?
From a Google search, I found several brands of mixed dry fruits available in the US. Some do contain raisins and/or currants, but not most. Typically, they contain apricots, apples, peaches, plums, pears and sometimes nectarines. Like This