condition mean min max 0 h after light 0.168828 0.112418 0.225238 4 h after light 0.229092 0.0 0.458184 8 h after light 0.114435 0.0 0.22887 4 h after dark 0.0552045 0.0 0.110409 8 h after dark 0.221903 0.111651 0.332155 12 h after dark 0.1110445 0.109822 0.112267