Bytes sent (in bytes):
/w.set Fserve Send.Bytes 0000000
Replace the red with the number of bytes. If you have the stats still (you're just reinstalling), you can view the exact number from:
//echo -a $r.set(Fserve,Send.Bytes)
If not, then just use this to get your number of bytes:
If you send 5.5GB:
//echo -a $calc(5.5 * 1024 * 1024 * 1024)
Files sent:
/w.set Fserve Send.Total 000000
Replace the red with the number of files sent.