condition mean min max 4 h after light 3.3578919999999997 3.2321299999999997 3.4490809999999996 8 h after light 5.993856 3.978054 9.964113000000001 12 h after light 23.378126666666667 19.083679999999998 30.18007 16 h after light 26.277303333333332 21.671979999999998 34.864940000000004 4 h after dark 20.054943333333334 17.88391 23.24286 8 h after dark 8.098854333333334 2.760309 15.92581