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["Дата","L_1","L_2","L_3"]
["2000-10-02",43,null,null,null,"2000-01-01",30]
["2000-12-21",42,null,10,null,"2005-01-01",30]
["2001-03-11",41]
["2001-05-30",40,null,12]
["2001-08-18",39]
["2001-11-06",38,null,14]
["2002-01-25",37,22]
["2002-04-15",36,23,16]
["2002-07-04",35,24]
["2002-09-22",34,25,18]
["2002-12-11",33,26]
["2003-03-01",32,27,20]
["2003-05-20",31,28]
["2003-08-08",30,29,22]
["2003-10-27",29,30]
["2004-01-15",28,31,24]
["2004-04-04",27,32]
["2004-06-23",26,33,26]
["2004-09-11",25,34]