condition mean min max 4 h after light 10.535287499999999 9.395405 11.67517 8 h after light 9.6789165 9.237997 10.119836 12 h after light 10.566393999999999 10.17539 10.957398 4 h after dark 9.84916 9.083822 10.614498 8 h after dark 10.3296595 9.93095 10.728369 12 h after dark 11.887839 11.887839 11.887839