condition mean min max 4 h after light 106.581 101.988 111.174 8 h after light 84.77605 80.7934 88.7587 12 h after light 100.9505 100.55 101.351 4 h after dark 184.499 177.88 191.118 8 h after dark 179.7975 174.527 185.068 12 h after dark 155.362 144.183 166.541