diff --git a/Makefile b/Makefile
index fc884e1..00510f2 100644
--- a/Makefile
+++ b/Makefile
@@ -43,7 +43,7 @@ stats/mondo_diff.txt:
 	$(eval END := 2023-03-01)
 	$(eval ID := mondo)
 	make ontologies/$(ID)_$(START).obo ontologies/$(ID)_$(END).obo
-	#runoak -i simpleobo:ontologies/$(ID)_$(START).obo diff -X simpleobo:ontologies/$(ID)_$(END).obo -o $@.yaml --statistics
+	runoak -i simpleobo:ontologies/$(ID)_$(START).obo diff -X simpleobo:ontologies/$(ID)_$(END).obo --statistics -o $@.yaml
 	robot diff --left ontologies/$(ID)_$(START).obo --right ontologies/$(ID)_$(END).obo -o $@
 .PRECIOUS: stats/mondo_diff.txt
 
@@ -53,7 +53,7 @@ stats/maxo_diff.txt:
 	$(eval END := 2023-03-09)
 	$(eval ID := maxo)
 	make ontologies/$(ID)_$(START).obo ontologies/$(ID)_$(END).obo
-	#runoak -i simpleobo:ontologies/$(ID)_$(START).obo diff -X simpleobo:ontologies/$(ID)_$(END).obo --statistics -o $@.yaml
+	runoak --stacktrace -i simpleobo:ontologies/$(ID)_$(START).obo diff -X simpleobo:ontologies/$(ID)_$(END).obo --statistics -o $@.yaml
 	robot diff --left ontologies/$(ID)_$(START).obo --right ontologies/$(ID)_$(END).obo -o $@
 .PRECIOUS: stats/maxo_diff.txt
 
@@ -63,7 +63,7 @@ stats/hp_diff.txt:
 	$(eval END := 2023-01-27)
 	$(eval ID := hp)
 	make ontologies/$(ID)_$(START).obo ontologies/$(ID)_$(END).obo
-	#runoak -i simpleobo:ontologies/$(ID)_$(START).obo diff -X simpleobo:ontologies/$(ID)_$(END).obo --statistics -o $@.yaml
+	runoak -i simpleobo:ontologies/$(ID)_$(START).obo diff -X simpleobo:ontologies/$(ID)_$(END).obo --statistics -o $@.yaml
 	robot diff --left ontologies/$(ID)_$(START).obo --right ontologies/$(ID)_$(END).obo -o $@
 .PRECIOUS: stats/hp_diff.txt
 
@@ -74,5 +74,3 @@ stats/%_diff_summary.txt: stats/%_diff.txt
 	grep -E "[+] AnnotationAssertion.*IAO_0000115" $< | wc -l >> $@
 	echo "New or updated synonyms: " >> $@
 	grep -E "[+] AnnotationAssertion.*Synonym" $< | wc -l >> $@
-
-https://github.com/obophenotype/human-phenotype-ontology/releases/download/v2023-03-01/hp-base.obo
diff --git a/stats/hp_diff.txt.yaml b/stats/hp_diff.txt.yaml
new file mode 100644
index 0000000..ccbbcc5
--- /dev/null
+++ b/stats/hp_diff.txt.yaml
@@ -0,0 +1,12 @@
+__RESIDUAL__:
+  NewSynonym: 237
+  NodeRename: 207
+  EdgeDeletion: 210
+  NodeMove: 164
+  NodeDirectMerge: 39
+  RemoveSynonym: 105
+  NodeObsoletion: 1
+  ClassCreation: 300
+  NodeCreation: 1
+  All_Obsoletion: 40
+  All_Synonym: 342
diff --git a/stats/maxo_diff.txt.yaml b/stats/maxo_diff.txt.yaml
new file mode 100644
index 0000000..6154f6d
--- /dev/null
+++ b/stats/maxo_diff.txt.yaml
@@ -0,0 +1,11 @@
+__RESIDUAL__:
+  RemoveSynonym: 243
+  NewSynonym: 226
+  NodeRename: 53
+  NodeMove: 232
+  EdgeDeletion: 31
+  NodeObsoletionWithDirectReplacement: 4
+  NodeDeletion: 4
+  ClassCreation: 198
+  All_Obsoletion: 4
+  All_Synonym: 469
diff --git a/stats/mondo_diff.txt.yaml b/stats/mondo_diff.txt.yaml
new file mode 100644
index 0000000..211dc02
--- /dev/null
+++ b/stats/mondo_diff.txt.yaml
@@ -0,0 +1,15 @@
+__RESIDUAL__:
+  SynonymPredicateChange: 276
+  EdgeDeletion: 8412
+  NodeMove: 2366
+  PredicateChange: 2080
+  NodeObsoletionWithDirectReplacement: 39
+  RemoveSynonym: 308
+  NodeRename: 215
+  NewSynonym: 350
+  NodeDeletion: 1
+  NodeObsoletion: 55
+  NodeCreation: 4
+  ClassCreation: 512
+  All_Obsoletion: 94
+  All_Synonym: 934