Don't those numbers need to be normalized to take into account the size of the populations? You posted absolute raw numbers for blacks and whites, without noting that depending on how the categories are defined, the white population of the US is 4-6x greater than the black population of the US. 4x is the absolute minimum, so if you were to weight them proportionately what you posted would show a very different story.

If the most conservative numbers are used (only 4x as many whites as blacks in the US), then it turns into this:

2017

Whites: 457

Blacks: 223->892

2018

Whites: 399

Blacks: 209->836

2019

Whites: 370

Blacks: 235->940

2020

Whites: 172

Blacks: 88->352

But practically speaking, without splitting hairs too much it's a heck of a lot closer to 5-6x than 4x.

EDIT: formatting