condition mean min max 0 h after light 1.071275 1.07032 1.07223 4 h after light 1.342635 1.23116 1.45411 8 h after light 3.931165 3.45016 4.41217 4 h after dark 2.895285 2.28659 3.50398 8 h after dark 1.32211 1.06302 1.5812 12 h after dark 1.314765 0.71259 1.91694