Please do not be confused by the data.
Living standards are well reflected by 1) rate of housing ownership, 2) ratio of income to debt, 3) life expectancy, 4) years of education, 5) healthy care system, and 6) security for seniors and minors.
Based on the above, China must stand at the upper section of the world, similar to Canada or the States, and better than Japs!
Within China, the mainland has caught up with HK, Taiwan, and Macou, and in many aspects, the manland is doing better than these districts.