Compressed Bytes Sent by Algorithm - add aggregated value

[mykaul]

See example - it'd be useful to add aggregated zstd+lz4 to the graph of

The use case is that we wish to see if changing values, actually, overall, decreased the usage (for example, adding more CPU to zstd would allow it to compress more, so overall, while itself it'd do more, overall, we expect reduced network usage).