Aggregate function on Infotable

I am trying to use aggregate function on a "result" infotable. The aggregate function is returning and info table "result1". The infotable result1 column names are 

infoTable content: {AVERAGE_1667.0=null, AVERAGE_1667.0_COUNT=com.thingworx.types.primitives.NumberPrimitive@0, AVERAGE_1667.0_SUM=com.thingworx.types.primitives.NumberPrimitive@0}

Please find my code below.  How do I read the read the aggregated value(i.e Average values: 1667 this keeps changing every time I run this service)

// CreateInfoTableFromDataShape(infoTableName:STRING("InfoTable"), dataShapeName:STRING):INFOTABLE(US_NRV_Env_Reporting_Average_Value)
var result1 = Resources["InfoTableFunctions"].CreateInfoTableFromDataShape(params1);

var params = {
t: result /* INFOTABLE */,
columns: me.Data_Reading/* STRING */,
aggregates: "AVERAGE" /* STRING */,
groupByColumns: undefined /* STRING */
};

// result: INFOTABLE
result1 = Resources["InfoTableFunctions"].Aggregate(params);