TIL The True Cost of The 12 Days of Christmas [Mind=Blown]

So I was talking to my boyfriend about how they calculated the value of the 12 Days of Christmas (http://content.pncmc.com/live/pnc/microsite/CPI/2011/downloads/2011_1128_Rls_CPI.pdf)

My boyfriend told me that on each day the "true love" gets the previous days gifts all over again. I thought they only got each thing once and were recapping what was given. [Mind=Blown]