It doesn't perfectly match ETAOINSHRDLU (which I also remember, most likely from reading Hofstadter). The highest frequency letters here (the ones with charts in the darkest red) are E, O and T; next are A, H, I, N and S; the third group, D, F and R. Compared to ETAOINSHRDLU, A is underrepresented here (or O overrepresented), and F overrepresented. (L and U both appear in the fourth-highest frequency group in the chart.)
I'm a bit surprised (and delighted) that none of the 26 letters have a relatively smooth, flat, balanced graph with roughly equal frequencies for all positions. L probably comes the closest at a quick visual examination, but the bump toward the end of the word is still more than twice as tall as the lowest point. That said, it does seem that the rarest letters (such as J, Q, X and Z) often have very sharp, unbalanced graphs.