05 204 was around the start.

Currently E6 is:
0 638 0 100 (2 byte)
0 2 120 0 0 0 100 (1byte)

Writes (E9) 38,443

E6 Start 1,479
E6 Current 638
Difference: 841

E9 Start 37,484
E9 Current 38,443
Difference: 959

Anvils app is still going strong. Guess it will do for another 638GiB.