condition mean min max 4 h after light 10.1225585 9.561828 10.683289 8 h after light 9.617553000000001 9.105574 10.129532 12 h after light 10.4876595 10.129532 10.845787 4 h after dark 10.2368265 9.831232 10.642421 8 h after dark 10.023259 9.916986 10.129532 12 h after dark 9.900412 9.900412 9.900412