http://www.zdnetasia.com/insight/specialreports/itemployment/0,39055182,61999180-1,00.htm

The link above shows the salary surveys between different countries.   I was shocked when I see that job salaries in Malaysia is even lower than Thailand.  There is a huge gap between salaries in Singapore and Malaysia even though both countries start developing at the same time.  What might be the cause?

See the table of the Average Annual Salary by Years of Experience (U.S. Dollar).
The salaries of working in Malaysia for more than 10 years is even lower than salaries of working in Singapore for less than 5 years.  What a huge differences.