What JLPT level is this text?

Paste Japanese text: every kanji is colored by its JLPT level. Click one to look it up.

吾輩は猫である。名前はまだ無い。どこで生れたかとんと見当がつかぬ。何でも薄暗いじめじめした所でニャーニャー泣いていた事だけは記憶している。

Levels are also marked by underline: N5 none, N4 dotted, N3 dashed, N2 solid, N1 double. Only kanji are analysed — kana and vocabulary are not.