Expansion measures are in many cases adjusted over the long run, either for the overall load of 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 routinely, generally consistently, to adjust to changes in shopper conduct. Abrupt changes in customer conduct can in any case present a weighting inclination in expansion estimation. For instance, during the COVID-19 pandemic it has been shown that the crate of labor and products was presently not agent of utilization during the emergency, as various labor and products could never again be consumed because of government regulation measures ("lock-downs").[43]