2005. No recent one has been taken.
Today, it'd depict the areas roughly corresponding to Pyongyang, Chongjin, Horyeong, Wonsan, Rason, Sinuiju (I know a lot more about DPRK than I do about my own country Jesus Christ lol) as somewhat brighter; GDP has grown about ~60-120% if you 1. don't use CIA figures which just assume stagnation an 2. take the optimistic look at either RoK figures or Chinese trading volume figures for last year pre-embargo extrapolated to entire economy size, and of course, the North Korean yearbook itself details statistics for its economy on Marxist production measure lines, for which it has grown every year, even trhe arduous march.
Let's just say, it's doing better than these pontifications, some of them validly academic, some of it clearly propaganda designed to make it look like a time-capsule, estimate, and on the ground, if you look at a semi-friendly site like Daily NK which focuses on the living of the DPRK people WHILST denigrating the regime, wealth is increasing, and the economy is in boom.
There's no social mobility in Britain. That's been the case since my mother was promoted to supervisor in Macroes in 1989 and when applied for managerial in 1993, she was turned down; not on qualification (and besides virtually nobody had their O-Grades where she worked anyway), not on performance, not on recommendation, she was openly told, "you look foreign".
Then she left in 1997 for Livingston.
Yes, our perfect, liberal society.