1"type","depth","count"
2"thread_track",0,13359
3"thread_track",1,19447
4"thread_track",2,5816
5"thread_track",3,829
6"thread_track",4,191
7"thread_track",5,94
8"thread_track",6,57
9"thread_track",7,19
10"thread_track",8,14
11"thread_track",9,2
12