Two things to look at. First, the log: a week of dated evidence exists now, whatever the filter stamped on it, and that archive didn't exist eight days ago. Second, the critic's pattern — when it spikes, and what sets it off. For most people it turns out not to be random. That pattern is the commentary we cross-examine in week four, and the log is what we'll answer it with.
Nothing plotted yet — your evening log is what fills this in. Log a few days and the trend is what we read together each week.