condition mean min max 4 h after light 173.95684799999998 96.226599 251.687097 8 h after light 181.559474 177.886891 185.232057 12 h after light 174.7313245 126.118072 223.344577 4 h after dark 97.282498 48.6777 145.887296 8 h after dark 67.605995 46.964954 88.247036 12 h after dark 134.471224 134.471224 134.471224