year,age_adjusted_death_rate_per_100k,vs_prior_pct,context
2019,715.2,,baseline
2020,835.4,,no vaccine
2021,879.7,5.3,mass vax year — worse than 2020
2022,798.8,-9.2,boosters + Omicron
2023,750.5,-6.0,booster uptake cratering
2024,722.0,-3.8,minimal vax activity