condition mean min max 0 h after light 1.28047 1.04655 1.51439 4 h after light 2.327505 2.13272 2.52229 8 h after light 3.2511850000000004 2.13066 4.37171 4 h after dark 2.1732899999999997 1.71985 2.62673 8 h after dark 2.06966 1.96334 2.17598 12 h after dark 2.062475 1.62579 2.49916