Trade Data doesn't add up?

I am working with basic data that can be found here: https://github.com/binance/binance-public-data/ .

The specific dataset I am using is the example they give, although I have tested this on different months and I am getting the same results. Link to data download - https://data.binance.vision/data/spot/monthly/trades/BNBUSDT/BNBUSDT-trades-2019-01.zip .

I have a question about the quantity and quote quantity per trade. I made a basic column of quantity / quote quantity and the max quantity traded/quote quantity percent for the entire month is .186105.

This really doesn't add up.... I understand that there are plenty of algo's that will pull their order once they start to get filled, which would produce such a pattern where the quantity traded is always a small fraction of the quantity quote. But to never, not once in the entire month of trade data, have the quantity traded be above 18.6% of the total quoted quantity? That just does not make sense.... you can watch the market for 2 minutes and see someone with a large market order trade through multiple, multiple price levels. I know from experience when selling/buying that I have been the lone quantity on given price, and I have been filled full quantity in one trade, and I have filled someone else's order full quantity.

Can anyone make sense of this? I assume there has to be something I am misunderstanding.

Attached is a screenshot of the first 5 rows of data, where "quantity percent" is the quantity / quote quantity. If you look at the image describing each column, the bottom right shows the max for quantity percent column at .186105.

I have tried this on different months and am getting the same results. Something doesn't add up... can anyone help make sense of this? The only thing I can think of is maybe the exchange works like this on the backend and they split order fills up into small, small chunks to improve exchange performance and latency...however that doesn't hold true from actual fills I have had which show up as full quantity filled in one order.

https://preview.redd.it/5ud4diawqye71.png?1282&format=png&auto=webp&s=ede44982ea18ebf81970f60bfcfb51c1355abc01