How do I know how many times I have for each item?

Grasshopper
4

Yes, and getting back to your question, notice that the length of each branch is the total count for that respective number. The green group below more closely matches your original goal:

mindex__2019Nov25a
mindex__2019Nov25a.png727×484 20.6 KB

mindex__2019Nov25a.gh (12.4 KB)