diff --git a/owilix/cmd/base.py b/owilix/cmd/base.py
index 6c21958..498dfdd 100644
--- a/owilix/cmd/base.py
+++ b/owilix/cmd/base.py
@@ -330,9 +330,9 @@ class BaseCommand(metaclass=SubCommandMeta):
         resource_counter = Counter([row.resourceType for row in data if hasattr(row, "resourceType")])
         dataCenter_counter = Counter([row.dataCenter for row in data if hasattr(row, "dataCenter")])
         # Gather numerical data
-        object_counts = [row.objectCount for row in data if hasattr(row, "objectCount")]
-        total_sizes = [row.totalSize for row in data if hasattr(row, "totalSize")]
-        total_files = [row.fileCount for row in data if hasattr(row, "fileCount")]
+        object_counts = [row.objectCount for row in data if hasattr(row, "objectCount") and row.objectCount is not None]
+        total_sizes = [row.totalSize for row in data if hasattr(row, "totalSize") and row.totalSize is not None]
+        total_files = [row.fileCount for row in data if hasattr(row, "fileCount") and row.fileCount is not None]
 
         # Calculate summaries for numerical data
         total_object_count = sum(object_counts)