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 0.327506 0.321626 0.333386 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.183633 0.0 0.367266 4 h after dark 0.157679 0.0 0.315358 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0842095 0.0 0.168419