Which function would be used to count numbers by series in a column

I track the status of library books in Numbers. Books out on loan are number in the 100s (the first book lent out is '100', the second '101', etc.) Each status has a series.

100=Checked Out

200=Ready for Pick Up

300=Requested

400=Revisit

500=Pursue
600=Unavailable

700=Canceled

800=Returned

For reporting purposes, I would like to add a header row to show a status count (the number of 100-series, 200-series, etc.)

I've looked at CountIf, with a text array of A5:A7000. The problem is with the condition syntax. Ikeep getting a syntax error when I put '=100 or <200' as a condition. I thought I'd be able to put that in each of the cells in which I need the counts, incrementing the syntax accordingly ('=200 or <300' for the 200 Series count, and so on.)

I would appreciate input on this, especially if CountIf is appropriate to what I'm trying to count, and how to properly format the syntax to get the counts I'm looking for.

Here is a sample of my sheet: