Not able to edit the comment now, but the source is IDC Quarterly Personal Computing Device Tracker. They're quoted in a few different publications. 2019,2020

Not able to edit the comment now, but the source is IDC Quarterly Personal Computing Device Tracker. They're quoted in a few different publications. 2019,2020 https://9to5mac.com/2020/04/13/idc-gartner-mac-shipments-q1-2020/ https://9to5mac.com/2020/04/13/idc-gartner-mac-shipments-q1-... 2020,2021 https://www.businesswire.com/news/home/20210409005459/en/PC-Shipments-Show-Continued-Strength-in-Q1-2021-Despite-Component-Shortages-and-Logistics-Issues-According-to-IDC https://www.businesswire.com/news/home/20210409005459/en/PC-... 2022,2023 https://www.idc.com/getdoc.jsp?containerId=prUS50565723 https://www.idc.com/getdoc.jsp?containerId=prUS50565723