Upon each hospital there is imposed an annual license fee in an amount varying in accord with the following table:
(a) For hospitals with 4-49 beds, a fee of twenty dollars ($20.00);
(b) For hospitals with 50-99 beds, a fee of thirty dollars ($30.00);
(c) For hospitals with 100-199 beds, a fee of forty dollars ($40.00);
(d) For hospitals with 200 or more beds, a fee of fifty dollars ($50.00).