diff --git a/src/main/java/org/gcube/accounting/aggregator/persist/DocumentElaboration.java b/src/main/java/org/gcube/accounting/aggregator/persist/DocumentElaboration.java
index 6c69096..b5dfce5 100644
--- a/src/main/java/org/gcube/accounting/aggregator/persist/DocumentElaboration.java
+++ b/src/main/java/org/gcube/accounting/aggregator/persist/DocumentElaboration.java
@@ -25,6 +25,8 @@ public abstract class DocumentElaboration {
 	
 	protected static final String ID = Record.ID;
 	
+	protected static final int THRESHOLD_FOR_FIVE_PERCENT = 100000;
+	
 	protected final AggregationStatus aggregationStatus;
 	protected final File file;
 	protected final Bucket bucket;
@@ -52,7 +54,11 @@ public abstract class DocumentElaboration {
 
 			logger.info("{} - Going to elaborate {} rows", aggregationStatus.getAggregationInfo(), rowToBeElaborated);
 			
-			int tenPercentOfNumberOfRows = (rowToBeElaborated/10)+1;
+			int percentOfNumberOfRows = (rowToBeElaborated/10)+1;
+			if(rowToBeElaborated>=THRESHOLD_FOR_FIVE_PERCENT) {
+				percentOfNumberOfRows = percentOfNumberOfRows/2;
+			}
+			
 			
 			int elaborated = 0;
 			String line;
@@ -60,7 +66,7 @@ public abstract class DocumentElaboration {
 			while ((line = br.readLine()) != null) {
 				elaborateLine(line);
 				++elaborated;
-				if(elaborated % tenPercentOfNumberOfRows == 0){
+				if(elaborated % percentOfNumberOfRows == 0){
 					int elaboratedPercentage = elaborated*100/rowToBeElaborated;
 					logger.info("{} - Elaborated {} rows of {} (about {}%)", aggregationStatus.getAggregationInfo(), elaborated, rowToBeElaborated, elaboratedPercentage);
 				}