condition mean min max 4 h after light 282.0527555 254.217054 309.888457 8 h after light 269.2607085 217.516511 321.004906 12 h after light 216.4764275 194.132249 238.820606 4 h after dark 182.735299 167.161618 198.30898 8 h after dark 176.008151 173.580493 178.435809 12 h after dark 101.067891 101.067891 101.067891