The repopulation capacity of HSC clones from young versus aged and in B6 versus D2 mice is similar. AUC values were calculated for each individual repopulation kinetic for the first 7 months after transplantation. These values were sorted into bins using increments of 50. Shown are the percentages of HSCs that fall into each of these bins for young B6 (46 clones), aged B6 (29), young D2 (34), and aged D2 (24) HSCs. This analysis includes only clones where 1, 3, 5, and 7 months of data were available. Not all clones analyzed in Figure 3 were analyzed at these time points.