(Social categories) Less equal income distribution

Digitalmal, the site of a monthly magazine (Mal) which is more likely to use minjung (民衆) for "people" than sômin (庶民), has a story based on reports on income distribution: "Sômin and marginal strata growing, middle stratum shrinking". I've never seen the term han'gye kyech'ûng, which is apparently a translation loan from the English "marginal stratum." What is defined here as the marginal stratum, that is those with 50% or less of the median income (chungwi sodûk), were 11.7% in 1996, 13.2% in 1998, 13.5% in 2000 and 14.6% in 2002. Those with 50-100% of the media income are defined as the sômin stratum; their proportion has increased from 22.9% to 23.6%. On the other hand those with 150% of the median income have decreased from 38.2% to 25.3%. Categories at del.icio.us/hunjang: stratification • seomin • Koreansociety