Definitions

Basic monthly salary (HK$):
the present monthly salary excluding any bonuses (both guaranteed and non-guaranteed bonuses) but including commission in a particular job position. The present salary was recorded as at 1 September 2014
Predicted adjustment (%):
the predicted adjustment of a basic monthly salary in a particular job position in 2015
Employees:
it refers to those full-time salaried employees working in Hong Kong only. Expatriates, part-time and temporary employees are excluded 
Employee level:
employees are grouped into four categories based on their field’s experience:
  1. Top / senior management
  2. Middle management / non-managerial professionals
  3. Supervisory / officers
  4. Clerical / frontline
Average:
a mathematical average of a set of data values (basic monthly salaries, percentage adjustments, number of annual leave, and performance bonus or double pay). Arithmetic average will not be provided when number of the data values used in calculation is 4 or less.
Median:
a middle number of a set of data values (basic monthly salaries, percentage adjustments, number of annual leave and performance bonus or double pay) which divides the whole set into halves.
*Median will not be provided when number of the data values used in calculation is less than 5.
25th percentile (1st quartile):
it is the number of a set data values (basic monthly salaries, percentage adjustments, number of annual leave and performance bonus or double pay) which cuts off the lowest 25% of data.
75th percentile (3rd quartile):
it is the number of a set data values (basic monthly salaries, percentage adjustments, number of annual leave and performance bonus or double pay) which cuts off the highest 25% of data.
Inter-quartile Range (Q-range):
the difference between the data values at the 25th and 75th percentiles and is a measure of statistical dispersion.

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