condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.029323566666666665 0.0 0.0879707 6 h after dark 0.02322703333333333 0.0 0.0696811 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0