$ spent per capita on pizza stats?

Anybody know where to access this kind of info? Looking to see what $ level of sales should/can be expected for a given population? Is there a big difference in city vs rural, when have you reached your theoretical “peak”?, USA vs Canada etc etc…

Seems like a hard thing to find… I found one quote somewhere that said average consumption in the USA was 48 slices a year. So six pizzas…