condition mean min max 4 h after light 1.0804605 0.967531 1.19339 8 h after light 2.657565 2.39362 2.92151 12 h after light 13.28365 13.1768 13.3905 4 h after dark 13.13525 12.4625 13.808 8 h after dark 5.118505000000001 5.01423 5.22278 12 h after dark 1.96507 1.77604 2.1541