condition mean min max 4 h after light 221.50426299999998 185.756719 257.251807 8 h after light 173.6225595 171.70537 175.539749 12 h after light 242.100121 180.147662 304.05258 4 h after dark 174.72192 130.181501 219.262339 8 h after dark 163.683031 163.571644 163.794418 12 h after dark 129.387717 129.387717 129.387717