The sample size is given by N. This is the number of separate incumbents whose salary details have been used to produce the analysis provided in the table. The number of separate organisation from which the sample N is drawn is given by C.
The date of publication of the table is shown.
When collecting data for a job, data are gathered on salaries paid to separate individuals. The resulting statistics give a reliable indication of the spread of salaries for the job. We do not gather data on the basis of the average salary paid to a number of employees in a particular job within organisations. The results using this latter method tend to understate the spread in salaries for the job because the underlying spread in the salaries is masked by the averaging process. Our statistics therefore represent a sampling of much larger groups of employees to determine the pay characteristics of the larger groups.
