condition mean min max 4 h after light 2.7743130000000003 2.661905 2.893384 8 h after light 2.032163 1.521495 2.390105 12 h after light 1.3775733333333333 1.311868 1.4648700000000001 16 h after light 2.817782333333333 2.452191 3.321933 4 h after dark 2.281587 2.158904 2.519717 8 h after dark 1.5377239999999999 1.485572 1.567287