condition mean min max 4 h after light 4.16862 4.09364 4.2969599999999994 8 h after light 4.18564 4.1228 4.30829 12 h after light 4.277913333333333 4.0959900000000005 4.4375800000000005 4 h after dark 4.155116666666666 4.11508 4.19988 8 h after dark 4.145863333333334 4.134519999999999 4.15948 12 h after dark 4.280023333333333 4.07492 4.64361