condition mean min max 4 h after light 0.0744865 0.0 0.148973 8 h after light 0.342696 0.323299 0.362093 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0968505 0.0 0.193701 12 h after dark 0.0 0.0 0.0