Actually, I like this one better, though it's the same source of research (Georgetown). That median data doesn't tell the whole story, since there's a lot of scatter by subcategory. For example, check out the social sciences and you'll see that sociology is on the low end, econ on the high end:
http://cew.georgetown.edu/whatsitworthAs for the link above, per usual, I want more data behind the metrics. As you note, Brooke, they offer little/no explanation. THat's why I went to the GT site to begin; to try to understand what was behind the report. They don't make clear, and citing the fact that it's based on census data doesn't help, whether the grads of "the field" cited, are actually wokring in the field they studied. Consider, for example, that my sister works in management at Sears holdings. She has a couple of grad degrees ( UM/Boston, IIRC) in Music, meow, meow, for god's sake. She was a concert violinist and left that field long ago because it doesn't pay. So how would that show on the survey?