Since the graph axes are expressed in Gbps/Tbps, the plotted value is 18.52 Gbps, which is at 42% between the 1Gbps and the 1 Tbps mark.

There are 1440 minutes in a day, or 86400 seconds in a day. You have the black bar set (no numbers are given) 1/4 to 1/3 of a Tb/s. In somewhere between 800 to 600 seconds, “a server” would transmit (if it could, of course there is a server farm) the required 200Tb. That’s just 10 to 14 minutes. So the position of your black bar is horribly off.

The needed sustained data transfer rate per second to achieve 200Tb a day is 200,000,000Mb / 86400 or 2314Mb per second or 2.3 gigs a second.

One gig is of course 1/1000 of a terabyte. So 2.3 gigs is 23/10000 of a Tb. That black bar is not appearing at 23/10000 of the way up the 1 Tb/s marker.

You need to redo your diagram so perhaps it tops out at 3 gigs, then draw the black bar a third of the way past the 2 gig mark.