The attached graphs show the yearly distribution of Chinese members' incorporation into the Rotary Club of Shanghai and the duration of their membership. Data comes from rosters of members and membership lists available in the Archives of Rotary International, Evanston, Ill. The tables used for building the graphs are available in the "Tables" Section. 

The graphs reveal that the admission of Chinese nationals remained low during the first decade (1919-1929), with less than five new members per year, and only one (Y.C. Tong) during the first year (1920). There was a first peak in 1930 (11 new members). Between 1933 and 1940, the number of new members per year remained unstable, oscillating between a minimum of three (1934) and a maximum of seven (1936). The incorporation of Chinese members resumed after the war and reached its highest peak in 1945 (14 new members that year).* 

Since most members joined after 1930, and given their high professional mobility and the politically unstable situation in Shanghai and China more generally, it is quite remarkable that three members maintained their membership for over twenty years. C.T. Wang (Wang Zhenting) held the record, with twenty-eight years of membership, followed by Imin Hsu and Percy Kwok (21 years). Twenty-four members (22%) remained for more than ten years, and eighteen (17%) from five to ten years. The majority, however, stayed less than five years (53 members), including fourteen who left within a year. 

*Due to the lack of rosters between 1925-1930 and 1940-1945, however, we cannot assess the exact date of incorporation for members who joined in the 1920s and during the war. In reality, the trend was probably smoother than shown on the graph.