Count the number of accepted problems

[Coki628]

Hello,
I would like to count the number of accepted problems

To do so, I access the API like below to see user's data
https://api.topcoder.com/v5/members?handle=titia

But I couldn't see the meaning of "problemsSysByTest"
sum of "problemsSubmitted" - "problemsFailed" looks like the number of accepted problems, but I don't know if this "problemsSysByTest" affects it
Should I include this number somewhere?