If you are wondering about whether the pattern holds for the most recent years, the answer is yes. Here is the humanitarian aid per capita for 2013 alone:
It is apparent that some causes, like disaster relief for Haiti, become big for one or two years and then fade away. Lebanon and Jordan are near the top in the past two years because of the hugenumber of Syrian refugees flooding those countries. But per capita aid to the Palestinian Arabs remains always at the top.