reference.add(dbObject("_id", 2006, "count", 250, "avg", 4.7949999999999955, "sum", 1198.7499999999989));
reference.add(dbObject("_id", 2007, "count", 251, "avg", 4.634661354581674, "sum", 1163.3000000000002));
reference.add(dbObject("_id", 2008, "count", 251, "avg", 3.6642629482071714, "sum", 919.73));
reference.add(dbObject("_id", 2009, "count", 250, "avg", 3.2641200000000037, "sum", 816.0300000000009));
reference.add(dbObject("_id", 2010, "count", 189, "avg", 3.3255026455026435, "sum", 628.5199999999996));
inputUri = authCheck(new MongoClientURIBuilder()
.collection("mongo_hadoop", "yield_historical.in")).build();
outputUri = authCheck(new MongoClientURIBuilder()
.collection("mongo_hadoop", "yield_historical.out")).build();
}