Table 2. Number of issues, comments and projects for each bot.

There are 93 unique projects in our dataset, but many projects have used multiple bots at some point.

Issue Author	Projects	Issues	Comments	Period	Years
Dependabot	76	21,345	13,763	2017–2021	4
Depfu	16	1,346	1,032	2017–2021	4
Greenkeeper	34	3,015	2,273	2015–2020	5
Human	76	1,168	30,481	2013–2021	8
Pyup	22	3,075	1,690	2016–2021	5
Renovatebot	39	12,209	2,825	2017–2021	4
Total	93	42,158	52,064	–	–