The department shall:
1. Facilities with 4 or fewer beds. Reimburse all residential care facilities of up to 4 beds at a rate of at least $433 per month; and
2. Facilities with 5 or 6 beds. Reimburse all residential care facilities of 5 or 6 beds whose residents do not have severe mental or physical dysfunction or disability on a flat rate basis of at least $601 per month.