Isn't that the cumulative rate? It looks near-linear to me, which would mean consistent growth rate since March. I think it's read as "how many people in (age

Isn't that the cumulative rate? It looks near-linear to me, which would mean consistent growth rate since March. I think it's read as "how many people in (age group) have been hospitalized with C19" - note that the lines for all age groups are strictly increasing. Please correct me if I'm wrong.