condition mean min max 4 h after light 1.736035 1.67969 1.79238 8 h after light 1.118675 1.0488 1.18855 12 h after light 2.177685 1.87211 2.48326 4 h after dark 2.079995 1.8347 2.32529 8 h after dark 2.9399800000000003 2.20106 3.6789 12 h after dark 3.2646699999999997 2.79032 3.73902