condition mean min max 4 h after light 3377.9882755 3151.938038 3604.038513 8 h after light 2296.1995115 1573.600802 3018.798221 12 h after light 1864.3738130000002 927.33242 2801.415206 4 h after dark 1595.234422 1340.009101 1850.459743 8 h after dark 4642.5264265000005 1978.310074 7306.742779 12 h after dark 926.110363 926.110363 926.110363