condition mean min max 3 h after light 62.9461 52.2905 71.0163 6 h after light 39.14653333333333 36.2126 41.6036 9 h after light 23.923066666666667 20.6605 30.0644 12 h after light 56.738025 24.6491 130.742 3 h after dark 110.133 100.714 127.959 6 h after dark 187.444 169.671 219.052 9 h after dark 249.39733333333334 238.247 258.661 12 h after dark 178.13400000000001 174.739 181.529