condition mean min max 0 h after light 6.65308 6.27104 7.03512 2 h after light 7.930785 7.64683 8.21474 4 h after light 5.625954999999999 5.19042 6.06149 8 h after light 6.92699 6.24733 7.60665 12 h after light 13.4012 12.9409 13.8615 2 h after dark 11.286850000000001 10.8872 11.6865 4 h after dark 10.19735 10.1015 10.2932 8 h after dark 9.423465 9.2233 9.62363 12 h after dark 6.96392 6.93563 6.99221