condition mean min max 0 h after light 17.869300000000003 14.3107 21.4279 4 h after light 4.51354 1.98485 7.04223 8 h after light 0.9821854999999999 0.642411 1.32196 4 h after dark 1.919472 0.637724 3.20122 8 h after dark 7.0696200000000005 5.75557 8.38367 12 h after dark 20.94065 12.0523 29.829