condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.126866 0.0 0.253732 4 h after light 0.1122905 0.0 0.224581 8 h after light 0.127811 0.0 0.255622 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 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