15 In the charts on this page we use the ISO 8601 week end dates from 2020–2024.
The dates of any particular reporting week might differ slightly between countries. This is because countries that report weekly data define the start and end days of the week differently. Most follow international standard ISO 8601, which defines the week as from Monday to Sunday, but not all countries follow this standard. 15 In the charts on this page we use the ISO 8601 week end dates from 2020–2024. 16