As part of an elementary school’s campaign to promote healthy eating among students, the administration has asked you to present a workshop on cavity prevention. As part of your research, you come across a local statistical study that ranks nearby communities according to the incidence of cavities in the under-12 population. In this published document, each community is ranked in descending order, with the community featuring the highest incidence of cavities listed first, followed by the next highest community, and so on. What type of scale is this?