sentences:  Thunderbird's relative poverty, and lack of affiliation with a full-fledged university, proved significant disadvantages, even as interest in business education skyrocketed during the Reagan administration.Beginning in the 1990s, the school went by the name "Thunderbird, the American Graduate School of International Management".After reaching a peak enrollment of around 1,600 in the 1990s, Thunderbird saw declining enrollment numbers in the 2000s.