condition mean min max 4 h after light 3.6907846666666666 3.597718 3.838887 8 h after light 3.25286 3.082041 3.5240120000000004 12 h after light 1.775219 1.546461 1.9544860000000002 16 h after light 3.9248003333333337 3.4983910000000003 4.139106 4 h after dark 3.002864333333333 2.67385 3.477376 8 h after dark 1.8539446666666668 1.6450150000000001 1.9678490000000002