The document is a table comparing flat sizes, including the flat type, floor area, and average household size, with living space per person in 1980, 1990, and 2000.
As we can see in the table, there is a major difference between 1980 and 2000 in flat sizes, with a 5-square-meter difference in floor area for a 4-room flat between 1980 and 1990. This difference was even greater in 2000, at 15 square meters. In terms of floor area, the difference is just as bad for bigger floor areas. For example, for a 5-room space, the difference between 1980 and 2000 was about 35 square meters.
Moreover, as per the table, we can see that the average household size also diminished from around 4.6 in the 1980s to about 3.9 in the 1990s, and finally to 3.4 in the 2000s. So a decrease of 1.2 in about 20 years.
Furthermore, regarding space per person, there is still a difference over the years, but it is less pronounced. For example, as per the table provided, in the 90s, for a 3-room flat, the living space was about 15 sq m per person, while in the 2000s, for the same flat, the living space was 19 sq m per person. As we can see here, there’s an upward trend in living space per person. This upward trend is evident in 3-, 4-, or 5-room flats.