condition mean min max 4 h after light 158.41722299999998 155.693595 161.140851 8 h after light 210.2142665 180.882066 239.546467 12 h after light 215.474333 214.979425 215.969241 4 h after dark 323.574539 227.051821 420.097257 8 h after dark 274.1712735 194.012743 354.329804 12 h after dark 168.558197 168.558197 168.558197