The red line depicts the weekly average of anxiety in 2020, while the blue line represents the weekly average across 2018 and 2019. Daily personality means were calculated using population weights, and then T-scored compared to all data (2018-2019). Key events in 2020 are plotted as well, to aid the interpretation of fluctuations in personality levels and discrepancies from prior years. The shaded ribbons represent the 95% confidence interval; standard errors were calculated from the daily weighted variance (weighted according to population census weights), pooled, and divided by the square root of the total number of participants.