答案是看情况而定，要看这些公司有多公开，以及得出最后数额所依据的推测数据的准确度。
The answer is it depends on how open the companies are, and the accuracy of the assumption behind the computations performed to reach the final figures.
下一步就是再次开始问题、推测、数据收集和分析这四个步骤的过程。
The next step was to start the four-step process of questions, hypotheses, data collection, and analysis all over again.
科学家能粗略推测出上述数据，但决定性的祸端则藏在细节中。
Scientists can make rough guesses of what they may be, but the deterministic devil is in the details.
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