Let me see.
Fresh grad 2K.
After 4 years, get a promotion, maybe 2.8K per month.
After another 4 years, get another promotion, 3.5K a year.
Another 2 more years, get another promotion, 4K a year.
Total 10 years to reach 4K. 
u think so? with the presence of open door policy and HUNDREDS
and HUNDREDS of THOUSANDS PRCs(PEOPLE REPUBLIC OF CHINA) flocking
in ..
their very existence in our country can already suppress down
our wages to pathetic level..coupled by the additional increase in
inflation rate brought about by these influx of PRCs..
our increase in real income can generally be negative..