Let bullet sizes take the percent-mille integers that the first
edition of ECMA-376 defined, as the Java officeotron 0.8.8 release
patched its copy of this schema. Presentations in the wild carry
such values.

--- a/dml-main.rnc
+++ b/dml-main.rnc
@@ -2147,8 +2147,7 @@
 a_ST_TextBulletSizeDecimal =
   xsd:int { minInclusive = "25000" maxInclusive = "400000" }
 a_CT_TextBulletSizeFollowText = empty
-a_CT_TextBulletSizePercent =
-  attribute val { a_ST_TextBulletSizePercent }
+a_CT_TextBulletSizePercent = attribute val { a_ST_TextBulletSize }
 a_CT_TextBulletSizePoint = attribute val { a_ST_TextFontSize }
 a_EG_TextBulletSize =
   element buSzTx { a_CT_TextBulletSizeFollowText }