proc means data=flights.laguardia median maxdec=0;
   var boarded transferred deplaned;
   
run;

Dest	N Obs	Variable	Median
CPH	6	Boarded Transferred Deplaned	137 12 149
FRA	7	Boarded Transferred Deplaned	176 12 189
LON	20	Boarded Transferred Deplaned	186 11 200
PAR	13	Boarded Transferred Deplaned	155 15 182