TA CHART, page-66

unless there is announcement following on from the 4c, specifically
“March 2020 brought with it a period of uncertainty due to the global health crisis and companies across the globe were required to redistribute their workforces in keeping with worldwide restrictions on travel. During this time and continuing into April 2020, the number of enquiries for the Infinity range increased four-fold, as wellas the number of demonstrations and trials, in particular with the wearable products.”
four-fold bit got my interest!