Median years to complete a doctorate U.S. 1995-2021
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In 2021, doctoral students needed on average 7.3 years after starting graduate school to complete their doctorate. On average, they needed 8.7 years since their Bachelor's degree to complete their doctoral studies.
在2021年，博士生自研究生入学起平均需历时7.3年方能完成其博士学位。自本科毕业以来，他们平均需8.7年才能完成其博士学业。
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