A couple years ago I participated in a private tracker and wanted to get a good ratio, I uploaded constantly at about 95Mbps

95/8 = 11.875 (Mbit to MByte)

11.875 * 3600 = 42750 (MByte/s to MByte/h)

42750 / 1000 = 42.750 (MByte/g to GByte/h)

42.750 * 24 = 1026 (GByte/h to GByte/d)

1026 / 1000 = 1.026 (GByte/d to TByte/d)

In a two month period I uploaded about 50TB according to the tracker so my calculations seem about right.

It's easy to reach these numbers in a country where net neutrality is a thing.