OXFAM's Spending Habit.

I'm looking for the income versus expenditure figures of Oxfam, I heard somewhere that the amount of money that actually goes to funding projects is a scarily low percentage of what they get as donations and I want to see the figures.

My figures web-fu is not too hot...where might I find this?

All I've got so far is this: random chart but it really doesn't make much sense to me. What's it telling me?