Well, like I said: a higher percentage of 'cell standby' usage doesn't really need to mean that the 'cell standby' has used more energy but that it has proportionately used more energy (it means the other components have used less). That's the idea, anyhow.
If I drank a half glass of water today and let you drink the rest, then I have used 50% and you have used 50%. If tomorrow, I drank half a glass of water and you drank none, then of the water that was used, I drank 100% and you drank 0% (with 50% water left in the glass). See what I'm getting at? 'Cell standby' didn't necessarily use more juice, but since other stuff used less, the proportions shifted that way.