condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0777815 0.0 0.155563 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.1598705 0.0 0.319741 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0