This set of five areal curves aims to trace the distribution of advertising areas in each sample issue of the newspaper Shenbao. The letters and colors refer to the following gradual scale of areas:
- A : S < 5% page (dark blue)
- B : 5 < S < 10% page (light blue)
- C : 10 < S < 15% page (blue-green)
- D : 15 < S < 20% page (green)
- E : 20 < S < 25% page (yellow)
- F : 25 < S < 50% page (orange)
- G : S > 50% page (red)
The measurements were made after our usual five samples of the Shenbao (January 7, 1914; January 3, 1924; January 5, 1934; February 1, 1941; January 1, 1949). Each curve reveals the uneven distribution of areas between pages. By juxtaposing the five curves, one can trace the changes in this demographic distribution.
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