condition mean min max 0 h after light 5.297005 5.09886 5.49515 4 h after light 7.117005000000001 6.66138 7.57263 8 h after light 5.28627 4.93296 5.63958 4 h after dark 4.15934 4.09954 4.21914 8 h after dark 7.26225 7.00904 7.51546 12 h after dark 6.812025 5.6157 8.00835