VOA慢速英语:Ten Years after Katrina, New Orleans Is a Different City

demographics – n. having to do with the qualities, such as age, sex, income, of a group of people

diverse – adj. made up of people or things that are different from each other

statistical – adj. having to do with statistics, numbers representing information about something such as how often it happens, how common it is, etc.

benefite(d) – v. to have helped

upgrade(d) – v. to make something better