GMAT Critical Reasoning (CR) | Box office receipts for independent movies for the first

ANALYZE THE STIMULUS:

Fact: Box office receipts for independent movies for the first half of this year have increased by 20 percent over the total receipts for independent movies for all of last year.
Fact: Last year, 50 independent movies were released, while so far this year only 20 independent movies have been released.
Fact: The number of independent movies slated for release in the second half of this year is roughly equal to the number released so far.

Question:If the statements above are true, which of the following must be true?