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["날자","판매액(만원)"]
["2011-03-01",120,null,"평균"]
["2011-03-02",116]
["2011-03-03",123]
["2011-03-04",136]
["2011-03-05",121]
["2011-03-06",56]
["2011-03-07",98]
["2011-03-08",134]
["2011-03-09",110]
["2011-03-10",108]
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