condition mean min max 0 h after light 6.3231850000000005 6.1658 6.48057 4 h after light 7.106070000000001 6.17879 8.03335 8 h after light 4.199205 3.49832 4.90009 4 h after dark 5.122904999999999 4.9636 5.28221 8 h after dark 4.8504000000000005 4.38019 5.32061 12 h after dark 5.631815 4.84526 6.41837