The World Bank website provides large data on many world economic matters. The data include "Population living on less than $1 per day" in the world for each of the past twenty years or so. The data cite "1.089 billion" as the number for Year 2001. For the sake of PRECISION, I looked up whether the web site provided anywhere an explanation whether that meant that the COLLECTIVE earnings of the 1.089 billion people were less than $1.089 billion, or the collective earnings of the 1.089 billion people were less than say one-fourth of $1.089 billion assuming that a money earner's earnings provided for say three non-earners (typically women and children) in his household besides himself. I could not FIND explanation of this ambiguity anywhere in the World Bank web site. Can any expert provide me the PRECISE fact in the above matter? Thank you very much.