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data have;
input entry_date :datetime20.;
format entry_date datetime20.;
datalines;
16FEB2021:07:02:19
28MAR2023:11:52:22
29MAR2023:11:52:22
06JAN2024:17:23:51
21APR2024:23:02:38
;
proc freq data=have;
table entry_date ;
format entry_date dtmonyy7.;
run;
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