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Table 1

Present and future numbers of GRB observations.

GRB subsets Number Current data gathered from-to Number of yrs Rate/yr Data gathering until September 2025 GRBs by September 2025
Optical Afterglow with z 536 05/1997–10/2023 27 19.7 10/2023–09/2025 574
Optical plateau with z 180 05/1997–05/2021 24 7.50 05/2021–09/2025 193
Optical Afterglow without z 310 05/1997–10/2023 26 11.92 10/2023–09/2025 333
Optical plateau without z 104 05/1997–10/2023 26 4.00 10/2023–09/2025 112

X-ray plateaus without z 299 01/2005–02/2024 19.1 15.7 02/2024–09/2025 324
X-ray plateaus with z 255 03/2005–12/2023 18.7 13.6 12/2023–09/2025 279

Known redshifts in X-rays & Optical by May 2025 279 (X-ray) + 193(OA) 472

Predicted redshift via ML in X-rays and Optical by May 2025 324 (X-ray) + 112 (OA) From May 1997 to September 2025 436

% increase from X-rays and Optical plateaus with z with ML 436/472 92% more redshifts will be estimated

Notes. Number of GRBs this study will enable to have redshift predictions in the future using Swift observations.

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