condition mean min max 4 h after light 1.252068 0.708809 2.15498 8 h after light 0.4969016666666667 0.33226 0.739387 12 h after light 0.557233 0.366735 0.819952 4 h after dark 0.94434 0.81038 1.05636 8 h after dark 1.8608633333333333 1.16567 2.3852 12 h after dark 2.49491 2.06161 3.16883