Table:
text: List of busiest Amtrak stations
List
List
Rank_ Station City State_ Boardings_and_deboardings
13 Penn Station Newark New Jersey 683626
17 BWI Airport Station Linthicum Maryland 662453
16 Irvine Station Irvine California 664263
18 Providence Station Providence Rhode Island 625995
19 Milwaukee Intermodal Station Milwaukee Wisconsin 617800
21 Harrisburg Transportation Center Harrisburg Pennsylvania 543423
20 Emeryville Station Emeryville California 583865
22 Lancaster Station Lancaster Pennsylvania 539338
23 Back Bay Boston Massachusetts 479951
24 Bakersfield Bakersfield California 476767
25 North Station Boston Massachusetts 456198

Question: How many people got on and off the Amtrak at Linthicum to get a list of the busiest Amtrak stations?