On-yomi of kanji feel a bit like they all sound alike. For instance, vowels
/o/ and /u/ are over-represented.  
Are there statistics of phoneme counts or syllable counts for on-yomi compared
to kun-yomi? Something like: the top-100 syllables make up 20% of syllables
for kun but 40% for on.
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2019-01-25T13:19:35.600
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2019-02-01T22:13:45.580
2019-02-01T22:13:45.580
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question
readings statistics
Statistics of on-yomi phonemes/syllables