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: Dhanraj Pillay, whose career spanned from December 1989 to August 2004, played 339 international matches. The Indian Hockey Federation did not keep official statistics for the goals scored. There is no credible information on the number of International goals scored by Dhanraj. He scored around 170 goals in his career, according to both him and leading statisticians in the world. He is the only player to have played in four Olympics (1992, 1996, 2000, and 2004), four World Cups (1990, 1994, 1998, and 2002), four Champions Trophies (1995, 1996, 2002, and 2003), and four Asian Games (1990, 1994, 1998, and 2002). India won the Asian Games (1998) and Asia Cup (2003) under his captaincy. He was also the highest goal scorer in the Bangkok Asian Games and was the only Indian player to figure in the World Eleven side during the 1994 World Cup at Sydney.
How many years did Dhanraj Pillay career span from 1989 to 2004?