condition mean min max 4 h after light 2396.23272 2228.316858 2564.148582 8 h after light 2328.25981 1929.46991 2727.04971 12 h after light 1573.2850105 1094.616672 2051.953349 4 h after dark 824.1577895 559.463468 1088.852111 8 h after dark 761.9911815 533.629242 990.353121 12 h after dark 1476.658122 1476.658122 1476.658122