Debut novel details for various US SF&F publishers 2016-2021

(book_scraping) isfdb_tools $ for X in  "Tor" "Orbit US" "Saga Press" "Harper Voyager US" "Del Rey" "Baen" "Ace" "DAW"; do echo "= $X =" ; ./debut_novel_stats.py -P "${X}" -PP -y 2016-2021 2>/dev/null | grep ^2; echo; done
= Tor =
2016. Of 81 new novels by 86 distinct authors, 11 had a debut author | Ada Palmer, Bracken MacLeod, Charlie Jane Anders, Claudia Christian, David D. Levine, Melanie Ruth Rose, Morgan Grant Buchanan, Nisi Shawl, Richard Garriott, Simone Zelitch, Thomas Olde Heuvelt (mean 19th/9th book, median 16th/7th book)
2017. Of 71 new novels by 74 distinct authors, 12 had a debut author | Annalee Newitz, Bradley W. Schenck, C. Courtney Joyner, Erika Lewis, Gabrielle Harbowy, K Arsenault Rivera, Kari Maaren, Lara Elena Donnelly, Michael F. Haspil, Nat Cassidy, Robyn Bennis, Thoraiya Dyer (mean 18th/11th book, median 15th/10th book)
2018. Of 61 new novels by 70 distinct authors, 5 had a debut author | Jay Schiffman, Michael David Ares, Mirah Bolender, Sam Hawke, Sue Burke (mean 17th/8th book, median 14th/5th book)
2019. Of 60 new novels by 57 distinct authors, 8 had a debut author | Alison Wilgus, Arkady Martine, Baoshu, Brian Naslund, Chen Qiufan, Deborah Hewitt, K. A. Doore, Sarah Gailey (mean 18th/7th book, median 17th/7th book)
2020. Of 55 new novels by 52 distinct authors, 8 had a debut author | A. K. Larkwood, Camilla Bruce, Chris Kluwe, Karen Osborne, Kit Rocha, Ryan Van Loan, S. A. Hunt, Sarah Kozloff (mean 18th/9th book, median 15th/7th book)
2021. Of 40 new novels by 39 distinct authors, 7 had a debut author | Everina Maxwell, J. S. Dewes, Lucinda Roy, Neil Sharpson, Ryka Aoki, Shelley Parker-Chan, T. L. Huchu (mean 19th/4th book, median 16th/4th book)

= Orbit US =
2016. Of 39 new novels by 35 distinct authors, 5 had a debut author | Adrian Selby, James Bennett, Jordanna Max Brodsky, K. B. Wagers, K. S. Merbeth (mean 11th/7th book, median 11th/7th book)
2017. Of 48 new novels by 45 distinct authors, 6 had a debut author | Anna Smith Spark, David Mealing, Melissa Caruso, Nicholas Eames, R. J. Barker, Vivian Shaw (mean 12th/6th book, median 12th/5th book)
2018. Of 42 new novels by 39 distinct authors, 4 had a debut author | Leo Carew, Rich Larson, Rowenna Miller, Tasha Suri (mean 7th/5th book, median 7th/5th book)
2019. Of 49 new novels by 46 distinct authors, 2 had a debut author | Gareth Hanrahan, S. C. Emmett (mean 9th/6th book, median 9th/6th book)
2020. Of 34 new novels by 31 distinct authors, 2 had a debut author | Essa Hansen, Luke Arnold (mean 9th/7th book, median 9th/7th book)
2021. Of 35 new novels by 33 distinct authors, 3 had a debut author | C. L. Clark, Hannah Whitten, Lincoln Michel (mean 8th/6th book, median 8th/6th book)

= Saga Press =
2016. Of 12 new novels by 13 distinct authors, 3 had a debut author | Joe Zieja, Kat Howard, Mishell Baker (mean 7th/3th book, median 5th/3th book)
2017. Of 21 new novels by 21 distinct authors, 3 had a debut author | Gregory Manchess, R. E. Stearns, Theodora Goss (mean 9th/4th book, median 9th/4th book)
2018. Of 16 new novels by 16 distinct authors, 2 had a debut author | Rebecca Roanhorse, Shaun Barger (mean 12th/12th book, median 12th/12th book)
2019. Of 15 new novels by 15 distinct authors, 1 had a debut author | Temi Oh (mean 15th/7th book, median 15th/7th book)
2020. Of 12 new novels by 12 distinct authors, 3 had a debut author | Hao Jingfang, Lisbeth Campbell, Nick Martell (mean 12th/5th book, median 12th/5th book)
2021. Of 11 new novels by 11 distinct authors, 3 had a debut author | J. S. Kelley, M. J. Kuhn, S. B. Divya (mean 9th/4th book, median 9th/4th book)

= Harper Voyager US =
2016. Of 27 new novels by 25 distinct authors, 4 had a debut author | Davila LeBlanc, Elizabeth Bonesteel, Patrick Hemstreet, Rachel Dunne (mean 8th/4th book, median 8th/4th book)
2017. Of 22 new novels by 21 distinct authors, 9 had a debut author | Ausma Zehanat Khan, Christopher Brown (I), Elle Katharine White, Maggie Shen King, Marina J. Lostetter, Nicky Drayden, Ray Norman, S. A. Chakraborty, Wesley Snipes (mean 10th/3th book, median 10th/3th book)
2018. Of 31 new novels by 34 distinct authors, 6 had a debut author | David Pedreira, James S. Murray, Michael Mammay, R. F. Kuang, Rati Mehrotra, Sarah Tarkoff (mean 15th/4th book, median 13th/4th book)
2019. Of 25 new novels by 25 distinct authors, 5 had a debut author | Caitlin Starling, Eyal Kless, Jessie Mihalik, Valerie Valdes, W. M. Akers (mean 9th/2th book, median 9th/2th book)
2020. Of 28 new novels by 29 distinct authors, 1 had a debut author | Doug Engstrom (mean 16th/4th book, median 15th/4th book)
2021. Of 16 new novels by 15 distinct authors, 2 had a debut author | Ava Reid, Greta Kelly (mean 16th/5th book, median 16th/5th book)

= Del Rey =
2016. Of 16 new novels by 16 distinct authors, 1 had a debut author | Sylvain Neuvel (mean 23th/13th book, median 23th/13th book)
2017. Of 24 new novels by 21 distinct authors, 2 had a debut author | Callie Bates, Katherine Arden (mean 21th/10th book, median 21th/10th book)
2018. Of 19 new novels by 19 distinct authors, 1 had a debut author | Gigi McCaffrey (mean 20th/11th book, median 19th/9th book)
2019. Of 24 new novels by 22 distinct authors, 0 had a debut author | N/A (mean 18th/14th book, median 17th/8th book)
2020. Of 18 new novels by 17 distinct authors, 3 had a debut author | Micaiah Johnson, Simon Jimenez, Zack Jordan (mean 14th/9th book, median 14th/9th book)
2021. Of 20 new novels by 19 distinct authors, 5 had a debut author | Dan Frey, Emma Mieko Candon, Heather Walter, Marieke Nijkamp, Terry Miles (mean 16th/6th book, median 16th/6th book)

= Baen =
2016. Of 27 new novels by 31 distinct authors, 5 had a debut author | Anette Pedersen, Joelle Presby, Kerryn Offord, Patrick Chiles, Rick Boatright (mean 22th/14th book, median 14th/10th book)
2017. Of 26 new novels by 27 distinct authors, 2 had a debut author | Alistair Kimble, Griffin Barber (mean 24th/15th book, median 16th/14th book)
2018. Of 22 new novels by 30 distinct authors, 1 had a debut author | Mike Massa (mean 30th/18th book, median 17th/15th book)
2019. Of 23 new novels by 27 distinct authors, 1 had a debut author | Martin L. Shoemaker (mean 29th/19th book, median 19th/11th book)
2020. Of 25 new novels by 33 distinct authors, 1 had a debut author | Phillip Pournelle (mean 27th/22th book, median 15th/12th book)
2021. Of 25 new novels by 30 distinct authors, 2 had a debut author | A. C. Haskins, Justin Watson (mean 22th/15th book, median 14th/7th book)

= Ace =
2016. Of 33 new novels by 30 distinct authors, 3 had a debut author | Holly Jennings, J. Patrick Black, Will Panzo (mean 15th/12th book, median 15th/12th book)
2017. Of 22 new novels by 22 distinct authors, 1 had a debut author | Ed McDonald (mean 18th/13th book, median 17th/12th book)
2018. Of 25 new novels by 24 distinct authors, 2 had a debut author | Gordon Doherty, W. L. Goodwater (mean 17th/9th book, median 17th/9th book)
2019. Of 24 new novels by 23 distinct authors, 3 had a debut author | Angus Macallan, C. M. Waggoner, Joel Dane (mean 12th/10th book, median 12th/10th book)
2020. Of 23 new novels by 21 distinct authors, 2 had a debut author | Alexis Henderson, Alina Boyden (mean 14th/11th book, median 14th/11th book)
2021. Of 17 new novels by 17 distinct authors, 1 had a debut author | Genevieve Gornichec (mean 14th/13th book, median 14th/13th book)

= DAW =
2016. Of 24 new novels by 20 distinct authors, 3 had a debut author | Gerald Brandt, Sarah Kuhn, Todd Lockwood (mean 25th/13th book, median 23th/13th book)
2017. Of 32 new novels by 28 distinct authors, 0 had a debut author | N/A (mean 19th/14th book, median 19th/14th book)
2018. Of 25 new novels by 20 distinct authors, 3 had a debut author | Cass Morris, Christopher Ruocchio, Sara Hanover (mean 29th/19th book, median 29th/19th book)
2019. Of 27 new novels by 24 distinct authors, 3 had a debut author | Dan Stout, Suzanne Palmer, Troy Carrol Bucher (mean 31th/24th book, median 29th/24th book)
2020. Of 29 new novels by 25 distinct authors, 1 had a debut author | Juliette Wade (mean 30th/14th book, median 30th/14th book)
2021. Of 29 new novels by 26 distinct authors, 3 had a debut author | E. J. Beaton, Joshua Phillip Johnson, Lena Nguyen (mean 20th/10th book, median 20th/10th book)