Sydney - All modes historical patronage - Top Level Chart
  Greg Sutherland

https://www.transport.nsw.gov.au/data-and-research/passenger-travel/all-modes-patronage-historical/all-modes-historical-patronage

Might be a little embarrassing if they included Sydney's tramway
patronage.  Between World War I and World War II it exceeded 1 million
per day, each year!

Greg