Thanks, anon!
Archive or link to where this chart is posted/updated?
Awesome contribution, anon. Thank you for all the work that goes into this.
No specific timeframe, no deadline for unsealing.
Federal Rules of Criminal Procedure › TITLE III. THE GRAND JURY, THE INDICTMENT, AND THE INFORMATION › Rule 6. The Grand Jury
Rule 6. The Grand Jury
https://www.law.cornell.edu/rules/frcrmp/rule_6
Sealed Indictment. The magistrate judge to whom an indictment is returned may direct that the indictment be kept secret until the defendant is in custody or has been released pending trial. The clerk must then seal the indictment, and no person may disclose the indictment's existence except as necessary to issue or execute a warrant or summons.
Look at the map and compare it with voter / election, trafficking, and immigration/illegals maps. Inferences can be made.