Time to view distribution (top), median time to view (middle), and proportion unviewed (bottom) for the 30 most common tests. The top violin plot shows the distribution of time to view in the first 30 days from publication on a logarithmic timescale, for each test. In the middle plot, the same median is shown with 95% confidence intervals for the median calculated using a bootstrap estimation. In the lower plot, the absolute proportion of tests that are unviewed is shown with 95% confidence intervals determined by the size of the group, assuming a binomial distribution.