condition mean min max 4 h after light 203.23324 201.847441 204.619039 8 h after light 234.39768399999997 195.6281 273.167268 12 h after light 183.651805 175.539749 191.763861 4 h after dark 166.5032755 156.385903 176.620648 8 h after dark 133.7148505 124.926548 142.503153 12 h after dark 163.931161 163.931161 163.931161