condition mean min max 0 h after light 6.111115 5.53999 6.68224 4 h after light 7.44731 7.44026 7.45436 8 h after light 5.91578 5.2775 6.55406 4 h after dark 7.994085 7.41145 8.57672 8 h after dark 7.8969000000000005 6.41097 9.38283 12 h after dark 7.991225 7.7663 8.21615