condition mean min max 0 h after light 0.6749635 0.518633 0.831294 4 h after light 2.938695 2.81239 3.065 8 h after light 3.7615549999999995 2.95645 4.56666 4 h after dark 2.8079400000000003 2.34307 3.27281 8 h after dark 2.078595 1.78776 2.36943 12 h after dark 1.122536 0.725112 1.51996