The annual amount of the tax imposed is at the following rates per square foot of advertising imagery:$15 per square foot of advertising imagery for an electronic outdoor advertising display that changes images more than once a day; and $5 per square foot of advertising imagery for any other outdoor advertising display. If a single space is used for multiple outdoor advertising displays during the course of one reporting period, the advertising host who makes that space available:must pay the annual tax as if the display that would generate the highest tax liability had been in place for the entire year; and need not pay an additional tax for any other displays in that space. Ord. 13-139