How many people boarded and de-boarded the Amtrak in Linthicum?
CREATE TABLE table_68712 (
    "Rank" real,
    "Station" text,
    "City" text,
    "State" text,
    "Boardings and deboardings" real
)
SELECT COUNT("Boardings and deboardings") FROM table_68712 WHERE "City" = 'linthicum'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many people boarded and de-boarded the Amtrak in Linthicum? ### Input: CREATE TABLE table_68712 (
    "Rank" real,
    "Station" text,
    "City" text,
    "State" text,
    "Boardings and deboardings" real
) ### Response: SELECT COUNT("Boardings and deboardings") FROM table_68712 WHERE "City" = 'linthicum'