condition mean min max 4 h after light 5.1366966666666665 5.080030000000001 5.18834 8 h after light 5.214013333333333 4.95003 5.56706 12 h after light 5.057523333333333 4.9869699999999995 5.16161 4 h after dark 5.122416666666667 5.02061 5.267 8 h after dark 5.0541100000000005 4.9584 5.13914 12 h after dark 5.12178 4.93812 5.23691