Notice the usage levels on January 2nd and 3rd reflect a holiday shutdown. The weekend of the 15th shows usage for a typical weekend. However, the weekend of the 8th and 22nd show an abnormally high level of consumption as compared with the other two. There may be a valid reason for this such as extended production. If not, this is an opportunity to identify waste and track future weekends to the benchmark established on the weekend of the 15th.