condition mean min max 0 h after light 2.8957050000000004 2.86656 2.92485 4 h after light 2.579555 2.54219 2.61692 8 h after light 3.3302449999999997 3.25617 3.40432 4 h after dark 3.7097749999999996 3.28455 4.135 8 h after dark 2.9409850000000004 2.71864 3.16333 12 h after dark 2.571085 2.38549 2.75668