condition mean min max 0 h after light 9.428955 7.96311 10.8948 2 h after light 8.23311 7.47512 8.9911 4 h after light 9.817465 9.46673 10.1682 8 h after light 10.0466 9.599 10.4942 12 h after light 11.2255 10.3516 12.0994 2 h after dark 11.25215 10.282 12.2223 4 h after dark 9.84456 8.31912 11.37 8 h after dark 12.264500000000002 11.4684 13.0606 12 h after dark 8.297695000000001 7.84634 8.74905