condition mean min max 0 h after light 2.027945 1.85459 2.2013 2 h after light 2.658605 2.6326 2.68461 4 h after light 2.964065 2.76759 3.16054 8 h after light 2.564355 2.22394 2.90477 12 h after light 2.746325 2.51276 2.97989 2 h after dark 4.281405 4.17806 4.38475 4 h after dark 3.6315299999999997 3.58755 3.67551 8 h after dark 3.4536049999999996 3.01421 3.893 12 h after dark 2.5278400000000003 2.45194 2.60374