Analysis by Adobe Digital Insights (ADI), which uses Adobe Analytics to analyze trillions of online engagements to 80 of the top 100 retailers in the U.S., has found that COVID-19 had a tremendous impact on how people shopped online in 2020. E-commerce sales for the last holiday season saw two years' worth of growth, reaching $188.2 billion, up a whopping 32 percent year over year (YoY).