diff --git a/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleStatisticsCase.cpp b/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleStatisticsCase.cpp
index be52146794..c050943fb8 100644
--- a/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleStatisticsCase.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleStatisticsCase.cpp
@@ -307,16 +307,21 @@ void RimEnsembleStatisticsCase::calculate( const std::vector<RimSummaryCase*>& s
         }
         else
         {
-            // Compute statistics on binnedYValues
-            double p10, p50, p90, mean;
-            RigStatisticsMath::calculateStatisticsCurves( binnedYValues, &p10, &p50, &p90, &mean, RigStatisticsMath::PercentileStyle::SWITCHED );
-            m_p10Data.push_back( p10 );
-            m_p50Data.push_back( p50 );
-            m_p90Data.push_back( p90 );
-            m_meanData.push_back( mean );
+            const size_t minimumCount = 500;
+
+            if ( binnedYValues.size() > minimumCount )
+            {
+                double p10, p50, p90, mean;
+                RigStatisticsMath::calculateStatisticsCurves( binnedYValues, &p10, &p50, &p90, &mean, RigStatisticsMath::PercentileStyle::SWITCHED );
+                m_p10Data.push_back( p10 );
+                m_p50Data.push_back( p50 );
+                m_p90Data.push_back( p90 );
+                m_meanData.push_back( mean );
+
+                m_binnedXValues.emplace_back( currentX );
+            }
 
             currentX += deltaRangeX;
-            m_binnedXValues.emplace_back( currentX );
             binnedYValues.clear();
         }
     }