From your link:
> The parameters in the scenarios:
> -Are estimates intended to support public health preparedness and planning.
> -Are not predictions of the expected effects of COVID-19.
> -Do not reflect the impact of any behavioral changes, social distancing, or other interventions.
These numbers are not meant to be accurate. That's why they list 5 different sets of numbers.
From your link:
> The parameters in the scenarios:
> -Are estimates intended to support public health preparedness and planning.
> -Are not predictions of the expected effects of COVID-19.
> -Do not reflect the impact of any behavioral changes, social distancing, or other interventions.