How many NBA years did the player from the United States who was previously on the los angeles lakers have?
CREATE TABLE table_76792 (
    "Pick" real,
    "Pos." text,
    "Nationality" text,
    "Team" text,
    "Previous team" text,
    "NBA years [a ]" text,
    "Career with the franchise [b ]" text
)
SELECT "NBA years [a ]" FROM table_76792 WHERE "Nationality" = 'united states' AND "Previous team" = 'los angeles lakers'
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 NBA years did the player from the United States who was previously on the los angeles lakers have? ### Input: CREATE TABLE table_76792 (
    "Pick" real,
    "Pos." text,
    "Nationality" text,
    "Team" text,
    "Previous team" text,
    "NBA years [a ]" text,
    "Career with the franchise [b ]" text
) ### Response: SELECT "NBA years [a ]" FROM table_76792 WHERE "Nationality" = 'united states' AND "Previous team" = 'los angeles lakers'