condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0218212 0.0 0.0436424 8 h after light 0.08597555000000001 0.0847509 0.0872002 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