Basic Basic monthly salary (HK$): the monthly salary excluding any bonuses but including commission in a particular job position as at 1 May 2008.
Salary adjustment (%): the adjustment of basic monthly salary in a particular job position in 2008 compared with that in 2007.
Arithmetic average: a mathematical average of a set of data values (basic monthly salaries, salary adjustments, and bonus received). The upper and lower 5% of the data are being trimmed to avoid the extreme values.
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