A quick bit of research shows that image to be current as at 8 November 2005. (Direct link http://www.glenelgfc.com.au/images/tally.jpg (and also that whoever runs the website has nfi about resizing images).
However, more interesting are the other two images in the same directory:
http://www.glenelgfc.com.au/images/tally2.jpg and
http://www.glenelgfc.com.au/images/tally3.jpg
Which are both dated 4 days BEFORE the image you quoted, despite one being higher than the "current" figure. Perhaps your club is just guessing when it comes to membership numbers?