condition mean min max 4 h after light 5544.512608999999 4631.192951 6457.832267 8 h after light 4015.3474415 3417.001288 4613.693595 12 h after light 4441.784611499999 4146.013126 4737.556097 4 h after dark 2865.9754615 738.133407 4993.817516 8 h after dark 1197.9323944999999 471.874356 1923.990433 12 h after dark 8673.078211 8673.078211 8673.078211