diff --git a/examples/csv-rules/tarsnap.csv.rules b/examples/csv-rules/tarsnap.csv.rules
index cdb9b6c2e..59246c717 100644
--- a/examples/csv-rules/tarsnap.csv.rules
+++ b/examples/csv-rules/tarsnap.csv.rules
@@ -21,3 +21,16 @@ if ^Usage,
  description %machine %type
  account2 expenses:tarsnap:%machine:%type
  amount -%quantity bytes @@ $%amount
+
+# sample output:
+# $ hledger -f .tarsnap.csv bal -B cur:\\$ -MAT expenses
+# using conversion rules file .tarsnap.csv.rules
+# Balance changes in 2016/12/01-2017/02/28:
+#
+#                                                     ||               2016/12                2017/01                2017/02                  Total                Average 
+# ====================================================++===================================================================================================================
+#  expenses:tarsnap:machine1:Client->Server bandwidth || $0.724738970500000000  $4.479661574000000000  $1.922747437750000000  $7.127147982250000000  $2.375715994083333333 
+#  expenses:tarsnap:machine1:Daily storage            || $3.031766211919159188 $23.945385100696412904  $8.584370624209118831 $35.561521936824690923 $11.853840645608230308 
+#  expenses:tarsnap:machine1:Server->Client bandwidth || $0.196816259250000000  $0.798626419000000000  $0.273752084250000000  $1.269194762500000000  $0.423064920833333333 
+# ----------------------------------------------------++-------------------------------------------------------------------------------------------------------------------
+#                                                     || $3.953321441669159188 $29.223673093696412904 $10.780870146209118831 $43.957864681574690923 $14.652621560524896974