Earlier quoted context omitted.
Ah, I didn't look closely at the charges graph. So yes, it maxed at ~5000 USD per day. I gotta say that using "$" for both USD and COP is confusing. So you must say "USD $x" and "COP $x". Then why bother with the "$"?
apparently the $ sign has its origins in the spanish Peso, where the p and s were gradually being merged together in abbreviations. futhermore the US Dollar itself stems from the Spanish Dollar: "The U.S. dollar was directly based on the Spanish Milled Dollar when, in the Coinage Act of 1792, the first Mint Act, its value was fixed [..] as being "of the value of a Spanish milled dollar as the same is now current
But it's still potentially confusing, when stuff gets translated with no context for currency values. Especially, I imagine, if you don't know either Spanish or English.