Google N-gram Corpus Counts
╭─ーーーー─┬─────────┬───────╮
│ 概ね　　 │ 812,443 │ 52.5% │
│ 大旨　　 │   2,804 │  0.2% │ 🡠 rK (daijr/s, koj, meikyo)
│ おおむね │ 733,549 │ 47.4% │
╰─ーーーー─┴─────────┴───────╯

@@ -8,0 +9 @@
+<ke_inf>&rK;</ke_inf>

Thanks. That is an error and I will fix it (almost certainly an old romaji transcription problem.)

This comment pertains not to this entry per se, but to the 
kanji dictionary's entry for this kanji (didn't see a way to 
enter a correction there). It gives the kunyomi as 「おうむ.
ね」 with う instead of お.

Thanks