Refers to the kind of work performed by persons during the week of Sunday, May 1 to Saturday, May 7, 2011, as determined by their kind of work and the description of the main activities in their job.~The 2011 National Household Survey occupation data are produced according to the NOC 2011. The National Occupational Classification (NOC) 2011 is composed of four levels of aggregation. There are 10 broad occupational categories containing 40 major groups that are further subdivided into 140 minor groups. At the most detailed level, there are 500 occupation unit groups. Occupation unit groups are formed on the basis of the education, training, or skill level required to enter the job, as well as the kind of work performed, as determined by the tasks, duties and responsibilities of the occupation.