Contributor	#commits (all time)	#commits (30 days)	#commits (90 days)	#commits (180 days)	#commits (365 days)	first commit	last commit
yuandong.tian@gmail.com	13	0	2	2	2	2020-08-25	2021-11-22	86%
yuandong@fb.com	2	0	0	0	0	2020-08-25	2020-10-29	13%