condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.044885 0.0 0.08977 4 h after light 0.0 0.0 0.0 8 h after light 0.04128795 0.0 0.0825759 12 h after light 0.0456358 0.0 0.0912716 2 h after dark 0.0447518 0.0 0.0895036 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