Comparison of measured mixing ratios in comet C/2021 A1 and the box statistic as described in Lippi et al. (2021). For each molecule indicated in the plot, the box is calculated as the range between the 25th and 75th percentiles, with the horizontal line representing the median value, computed considering 20 comets. C/2021 A1 data are in magenta, green, and blue for the first, second, and third observing date, respectively.