condition mean min max 4 h after light 1.5158775 0.822175 2.20958 8 h after light 1.082916 0.599402 1.56643 12 h after light 1.9994999999999998 1.8126 2.1864 4 h after dark 1.556156 0.484662 2.62765 8 h after dark 10.86815 5.6954 16.0409 12 h after dark 6.30097 1.88564 10.7163