Print the report and define the column headings. SPLIT= identifies the asterisk as the character that starts a new line in column headings. The N option prints the number of observations at the end of the report. OBS= specifies the column heading for the column that identifies each observation by number. The split character (*) starts a new line in the column heading. The equal signs (=) in the value of OBS= underlines the column heading.

proc print data=exprev split='*' n obs='Observation*Number*===========';