condition mean min max 4 h after light 132.1609625 125.146786 139.175139 8 h after light 169.2820385 142.253248 196.310829 12 h after light 162.302868 159.759969 164.845767 4 h after dark 193.216366 166.046829 220.385903 8 h after dark 163.063351 140.47191 185.654792 12 h after dark 209.940973 209.940973 209.940973