Lies, damned lies, and statistics, part II.
This graph covers only anime with a regular TV airing, as defined by AniDB, from which I pulled all of this data. Series are indexed by the date of their premiere, naively sorted into season buckets in blocks of three calendar months.
Oreimo aired in autumn 2010. Indeed, autumn has a pattern of having longer titles in most years. What does that, or anything else about this graph, tell us? You tell me.