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. 2022 Dec 16;9(12):1984. doi: 10.3390/children9121984

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Figure A6 — Autocorrelation plots for hit searches during the assessed timeframe (2017–2022), winter months only. Note: ACF = autocorrelation factor; DW = Durbin Watson coefficient. Values of DW coefficient > 2.0 rule out annual cyclical pattern.