150 - Psychology 3,779
155 - Differential & developmental psychology 3,061
158 - Applied psychology 2,464
153 - Conscious mental processes & intelligence 2,012
152 - Perception, movement, emotions & drives 677
159 - [Unassigned] 441
154 - Subconscious & altered states 208
157 - [Unassigned] 115
156 - Comparative psychology 54
151 - [Unassigned] 31
650 - Management and auxiliary services 1
658 - General management 1
700 - The arts 1