Q: 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: In 1680, the newly formed French East India Company sent a ship to Thailand, bearing a trading mission led by Andre Deslandes-Boureau, son-in-law of the Governor General of the French settlement in Pondicherry Francois Martin, which was well received by the Thais. In September 1680, a ship from the French East India Company visited Phuket and left with a full cargo of tin. The Dutch, the English, and from the 1680s the French, competed with each other for trade with the island of Phuket , which was valued as a rich source of tin. In 1681 or 1682, Siamese King Narai, who was seeking to reduce Dutch and English influence, named Governor of Phuket the French medical missionary Brother Rene Charbonneau, a member of the Siam mission of the Societe des Missions Etrangeres. Charbonneau held the position of Governor until 1685.
A:
For about how many years did Charbonneau hold the position of Governor?