condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.094846 0.0 0.189692 4 h after light 0.0552065 0.0 0.110413 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 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