condition mean min max 0 h after light 3.0406750000000002 2.97938 3.10197 4 h after light 1.56446 1.1822 1.94672 8 h after light 2.85695 2.8074 2.9065 4 h after dark 3.203435 2.65226 3.75461 8 h after dark 2.607665 2.49102 2.72431 12 h after dark 2.494445 2.39556 2.59333