The runoff from the March rains has ended. Thus, I think that this is a reasonable time to record how much runoff we have had for the year at this point.
The total runoff that I have tracked is: 16560.28 megalitres
However, this does not take into account runoff from rainfall in January and early February. ACTEW said that the runoff from that rainfall was 'effectively zero'. However, as I am not sure what they mean by that - they might simply mean 'it was very low - I am going to use the runoff per millimetre of rainfall rate to calculate the runoff.
This brings my total runoff for the year to: 19281.05045 megalitres.
This runoff is the result of 180 mm of rainfall.
It should be noted that we only got 43240 megalitres of rainfall last year, so we are doing much better by comparison.