yep, 100% correct stringfellow. The columns are provided by ASX in a much shorter time frame. The chart shows the accumulated total.
From shortman:
"Data graphed above represents aggregate short sales, provided by ASIC with a lag of 4 trading days (T+4). The ASX releases non-aggregated daily short sales figures which can be used as an indication of short sales activity within this 4 day window. These figures are released by the ASX daily and cover the previous days activity. This activity is listed in the table below, and is usually updated at 11:30am Sydney time. The table includes the most recent 20 ASX short sales updates for this stock."