Expansion measures are in many cases adjusted over the long run, either for the overall los products in the bushel, or in the manner by which labor and products from the present are contrasted and labor and products from an earlier time. Container loads are refreshed rout generally consistently, to adjust to changes in shopper conduct. Abrupt changes in custome can in any case present a weighting inclination in expansion estimation. For instance, durin COVID-19 pandemic it has been shown that the crate of labor and products was presently of utilization during the emergency, as various labor and products could never again be cor because of government regulation measures ("lock-downs").[43]