You're right, it doesn't make sense. We're adjusting our numbers to what the central bank has actually reported here:
http://www.bcra.gov.arReserves at 31 Dec were US$43.29b and at 18 Oct were US$34.25 = total loss of US$9.04b. Since there has been 291 actual days in the year up to 18 Oct, the daily loss is $31.08m.