season,covid_hosp_per_100k,flu_hosp_per_100k,covid_change_pct,approx_adult_vax_pct,approx_seroprevalence_pct
2020-21,520,1,,0-30,20
2021-22,519,18,-0.2,65-70,60
2022-23,252,62,-51.4,70 (waning),75
2023-24,200,83,-20.6,20 (updated dose),90
2024-25,102,126,-49.0,15 (updated dose),95