| Knowledge Base | Knowledge Percent Rank | Current Supply | Projected Demand | Description |
| Customer and Personal Service | 100 | 46,111 | 1,569 | Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction. |
| Psychology | 97 | 11,957 | 435 | Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders. |
| Education and Training | 94 | 14,944 | 475 | Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects. |
| English Language | 91 | 19,155 | 554 | Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar. |
| Medicine and Dentistry | 88 | 6,340 | 250 | Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures. |
| Therapy and Counseling | 85 | 6,200 | 229 | Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance. |
| Mathematics | 82 | 11,741 | 323 | Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications. |
| Administration and Management | 79 | 8,282 | 243 | Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources. |
| Mechanical | 76 | 9,784 | 296 | Knowledge of machines and tools, including their designs, uses, repair, and maintenance. |
| Building and Construction | 73 | 4,738 | 137 | Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads. |
| Sales and Marketing | 70 | 9,756 | 318 | Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems. |
| Biology | 67 | 1,740 | 65 | Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment. |
| Clerical | 64 | 18,190 | 465 | Knowledge of administrative and clerical procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and other office procedures and terminology. |
| Chemistry | 61 | 1,966 | 71 | Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal m |
| Design | 58 | 3,187 | 91 | Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models. |
| Personnel and Human Resources | 55 | 3,789 | 107 | Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems. |
| Law and Government | 52 | 4,568 | 107 | Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process. |