Total Sites / Total Assets per Site?

I know of the total assets report available under system maintenance - is there anything correspondingly that will report the number of sites + number of assets for each site - or would I need to roll my own solution for that?

Have you looked into the Asset Counter Report?

 

http://manuals.matrix.squizsuite.net/reports/chapters/asset-counter-report

I have now - thanks Nic.  We're trying to sort out some statistics and the asset counter report looks like something useful for a breakdown per site.