condition mean min max 3 h after light 0.9147203333333334 0.557481 1.46513 6 h after light 0.930971 0.0 2.31926 9 h after light 1.3095566666666667 0.94436 1.8882 12 h after light 3.4312575 2.27206 4.67269 3 h after dark 2.2190933333333334 2.12547 2.27005 6 h after dark 2.76488 1.91487 4.19806 9 h after dark 1.680894 0.545822 2.86222 12 h after dark 1.0300435 0.421607 1.63848