condition mean min max 4 h after light 1052.1670755 719.710146 1384.624005 8 h after light 845.2815425 761.12578 929.437305 12 h after light 885.291536 783.513731 987.069341 4 h after dark 717.8976964999999 644.468824 791.326569 8 h after dark 704.864345 629.001288 780.727402 12 h after dark 691.183631 691.183631 691.183631