condition mean min max 0 h after light 0.0613035 0.0 0.122607 4 h after light 0.245812 0.241768 0.249856 8 h after light 0.0 0.0 0.0 4 h after dark 0.060446 0.0 0.120892 8 h after dark 0.1816385 0.121771 0.241506 12 h after dark 0.1211095 0.119776 0.122443