Fluent (using the above definition) in:
- Reading novels aimed at elementary to junior high students: 1.5 – 2 years
- Reading Manga: 2 – 2.5 years.
- Reading contemporary novels: 2.5 – 3 years
- Reading internet discussion boards, blogs, articles: 3 – 3.5 years
- Reading the newspaper: 3.5 – 4.5 years
- Reading classic works of literature: 4.5 – 6+ years
- Watching Japanese Dramas/Movies: 1.5 – 2.5 years
- Watching anime: 2 – 2.5 years
- Watching variety shows: 3 – 4 years
- Listening to Japanese Music: 2.5 – 4.5 years (hugely varies depending on style)
- Watching comedians in Konto, Manzai, or Rakugo: 4 – 5+ years
- Conversations that are simple (weather, weekend, hobbies, likes, wants etc): 9 months – 1.5 years
- Conversations containing a wider range of topics: 1.5 – 2.5 years
- Conversations with multiple people at the same time on most topics: 2.5 – 4 years
- Conversations involving politics, law, science, the economy, etc: 4-6 years
- Very technical conversations: 6-8+ years
- Writing simple e-mails, text messages, tweets, diary: 1.5 – 2 years
- Writing organized compositions, reports, and business letters: 3 – 4.5 years
- Writing advanced essays and anything in high academia: 4.5 – 6+ years
Et pour moi ça serait bien plus que ça parce que bon.