"date","purchase","currency","revenue"
"2016-01-12","some stuff","pennies",1001.0
"2016-01-12","other stuff","dimes",1002.0
"2016-01-12","nice stuff","dimes",1003.0
"2016-01-12","aargh stuff","dimes",1004.0
"2016-01-12","stuff stuff","dimes",1005.0
"2016-01-12","stuff stuff stuff","pennies",1006.0
"2016-01-12","stuffity-stuff","pennies",1007.0
"2016-01-12","plain stuff","pennies",1008.0