condition mean min max 4 h after light 0.3958885 0.262559 0.529218 8 h after light 1.3246 1.1485 1.5007 12 h after light 1.52286 1.30917 1.73655 4 h after dark 1.0397725 0.686565 1.39298 8 h after dark 0.5140655000000001 0.454703 0.573428 12 h after dark 0.20796949999999997 0.190124 0.225815