11-15 million employees of yearly
income have stronger internal competitiveness than below 11 million employees, and above 16 million
employees have stronger internal competitiveness than below 5 million employees; over 11 million
employees have higher external competitiveness than below 11 million employees, and there is no
significant difference at external competitiveness between the employees with 11-15 million and over 16
million of yearly income; above 6 million employees have higher career satisfaction than below 6 million
employees.