When trying to find a graph of the market place value i received a response of
"No records found.
Check to make sure that the item is properly spelled and capitalized (the Wiki is usually correct) and that the time limits are reasonable."
I think this may be because in game Late night is hyphenated ie Late-Night Snack not Late Night Snack.
Late Night Snack / Discussion
This is the discussion related to the wiki page Late Night Snack.