Why would Story Aid not award prizes for receiving less than 100 entries in a year?
The quarterfinalists are the top 5% of the submitted scripts. Five percent of 100 is 5 scripts. The semifinalists are the top 1%. One percent of 100 is 1. This means that in a year with around 100 entries, the one semifinalist will be the only winner. As the entry number grows in time, so will the winners (up to three).