I don't have USA Hockey numbers, but at the beginning of the season I pulled these team counts but it doesn't include the independent teams.
16&18U --- from 58 (2019) to 64 (2022)
14U 67 to 67
12U 82 to 75
10U 77 to 69
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2019 total - 284 teams
2022 total - 275 teams