condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 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 0.135965 0.0 0.27193 4 h after dark 0.0 0.0 0.0 8 h after dark 0.273252 0.0 0.546504 12 h after dark 0.2543635 0.249401 0.259326