condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0547295 0.0 0.109459 4 h after dark 0.04877165 0.0 0.0975433 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0