This number has almost doubled over the last decade, particularly in international markets, where the growth dynamic is stronger than in North America. Overall, the group claims a fifth of the market share in pizza-based fast food. 
 
Domino's is often presented - not least for promotional purposes, to attract investors - as a digital pioneer. This quarter, however, has seen the establishment of a privileged partnership with Uber, a strong signal of the ubiquity of the Uber marketplace and the impossibility of going it alone.
 
As we know, Domino's extraordinary stock market success story is largely due to the methods of its previous CEO, Patrick Doyle. He led the group's recovery from the 2008 financial crisis, with a strong emphasis on returns to shareholders.
 
How sustainable will this model be? Over the past decade, Domino's has returned twice as much capital to its shareholders as it has generated in profits; the gap, naturally, has been filled by a proportional increase in debt. 
 
All the more so since financial arbitrage - raising capital at 2%-3% to buy back shares at a 5%-6% return on earnings - may no longer make sense since interest rates have risen, especially when at current valuation levels, return on earnings - cash profit divided by market capitalization - hovers around 3%-4%. 
 
The music can only go on if growth continues. Growth slows down in the first half of the year, but this is a recurring seasonal effect - at Domino's, the second half is always better than the first. 
 
Nevertheless, net debt now represents between seven and eight times operating profit. In other words, we're walking on a razor's edge, and growth had better be on target by the end of the current financial year.