What is the average income in 1800s?

its 16.05 that was enought to keep alive 18 people back then but my question is wat was it for the mid 1800s im doin a project about this an i started 2day n is do tommorow wich is 10/18/11 please help im not sure about wat im doin :( wel at the same time im glad because of something but i cant say is private lmao XD JAJAJAAJA