'00-'05 : 2
'06-'10 : 6
'11-'15 : 5
'16-'20 : 1
'21-'25 : 2
'26-'30 : 9 (with 2.8 classes left to go)

Here's a sorted list by time blocks then by year then alphabetical (first name):
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Mark LeVoir - 2001
Victor Abiamiri - 2003
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James Aldridge - 2006
Sam Young - 2006
Jimmy Clausen - 2007
Dayne Crist - 2008
Michael Floyd - 2008
Manti Te'o - 2009
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Aaron Lynch - 2011
Ishaq Williams - 2011
Gunner Kiel - 2012
Jaylon Smith - 2013
Max Redfield - 2013
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Tommy Kraemer - 2016
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Jaylen Sneed - 2022
Will Black - 2025
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Ian Premer - 2026
Joey O'Brien - 2026
Khary Adams - 2026
Rodney Dunham - 2026

Abraham Sesay - 2027
Albert Simien - 2027
David Folorunsho - 2027
Oluwasemilore Olubobola - 2027

Darieon Prescott - 2028

I would just add ... ND's list looks amazing, but with NIL I wonder how much that puts potential production at risk, bc even before NIL we saw plenty of great athletes not meet expectations while at ND.