get_network_stats_history

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Get one network-level statistic as a daily series One point for every UTC day of the window. `stat` is required. A flow statistic (`ap_switching` = Movers (AP), `cross_border` = Cross-border moves, `smp_switching` = Movers (SMP), `growth` = Net growth with Joiners and Leavers) carries per day its counts (`values`), the registered-participant count at the start of the day (`base`), the first key as a percentage of that base (`pct`) and its 7-day mean (`mean_7d`). For `cross_border`, `base` is all AP moves of the day and `pct` is the cross-border share of them. A day with no completed change scan has `gap: true` and `values: null` — a gap is never 0. The 7-day mean is the mean over the scanned days of `day − 6 .. day`: a gap day is in neither the sum nor the divisor, and the mean is null when all are gaps. It is the same figure as `trend_30d` of `/v1/network/stats`. For `growth`, a gap day keeps `joiners` and nulls `leavers` and `net`. A stock statistic (`concentration_ap` = Concentration (AP), `concentration_smp` = Concentration (SMP), `foreign_served` = Foreign-served participants, `penetration`) carries `values`, null on a day with no snapshot; `foreign_served` also carries `base`, the registered participants of that day. `concentration_ap`, `foreign_served` and `penetration` have no history before their first snapshot. The series starts 2026-08-02.