Given the task definition and input, reply with output. This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Passage: Up to the end of World War II, the vast majority of the population of Stettin were Lutheran Protestants. Historically, the number of inhabitants doubled from 6,081 in 1720, to 12,360 in 1740, and reached 21,255 in 1812, with only 476 Catholics and 5 Jews. By 1852 the population was 48,028, and 58,487 ten years later (1861), including 1,065 Catholics and 1,438 Jews. In 1885 it was 99,543, and by 1905 it ballooned to 224,119 settlers (incl. the military), among them 209,152 Protestants, 8,635 Catholics and 3,010 Jews. In the year of the invasion of Poland the number of inhabitants reached 268,421 persons according to German sources including 233,424 Protestants, 10,845 Catholics, and 1,102 Jews. The current population of Szczecin by comparison was 406,427 in 2009.
Between 1720 and 1740, how many more inhabitants were there?