condition mean min max 2 h after light 0.16572205 0.0 0.334478 6 h after light 0.3737143333333333 0.270442 0.540117 10 h after light 0.3560067 0.0833172 0.769293 14 h after light 0.19920716666666666 0.0 0.527152 18 h after light 0.42142383333333333 0.288654 0.647609 2 h after dark 0.364813 0.141611 0.82012