Baseline sensitivity

Upstream freshness. The newest data behind this page: Eurostat: STALE (6 identical weekly pulls since 2026-09-21) — data through 2026-W32, upstream's own updated field 2026-09-16; publisher cadence is quarterly since 2025; next expected update mid-December 2026 (ESMS metadata, 2026-07-08). ONS (England & Wales): current (last pull 2026-10-26) — data through 2026-W41. CDC (US): current (last pull 2026-10-26) — data through week ending 2026-10-17. NRS (Scotland): current (last pull 2026-10-26) — data through 2026-W42. A STALE feed means the publisher has not released new data; values here rest on the newest committed pull.

Ruling (E-1003-10, 2026-10-04): the registered expected-deaths rule stays; this table publishes with every print so the sensitivity around it is public; activation is a later, separate decision. INFORMATIONAL - feeds nothing.

Cumulative excess mortality this year under eleven "expected deaths" rules, in parts per million of S, on the maturity-fence panel (35 geos; fenced out: LIE, MNE, SVN). Panel edge 2026-W27, newest weekly pull 2026-10-26.

expected-deaths rulecum ppm of Sexcl. edge week
straight line 2015–2019 (current registered policy)-10.53-15.52
average 2015–201918.8715.26
average 2016–2019 (Eurostat's own excess baseline)22.0718.08
straight line 2017–201927.9628.33
straight line 2016–2019-87.78-87.99
straight line 2015–2018-24.82-33.22
average 2023–2025 †4.841.76
straight line 2022–2025 †24.3521.22
straight line 2023–2025 †-3.43-4.41
pooled line 2015–19 + 2022–25 †-11.92-14.33
pooled line 2015–19 + 2023–25 †-0.23-3.18

† post-pandemic-anchored rule. Defensible rules disagree on the sign of the year - that is the finding this table exists to keep public. The registered rule's own reading is the first row.