diff --git a/definitions/subannual/year.yaml b/definitions/subannual/year.yaml
new file mode 100644
index 0000000..71687d4
--- /dev/null
+++ b/definitions/subannual/year.yaml
@@ -0,0 +1,4 @@
+# Default entry for the subannual column
+
+- Year:
+    duration: 1