condition mean min max 4 h after light 11.2119135 10.881832 11.541995 8 h after light 10.0290795 9.427404 10.630755 12 h after light 11.0476735 10.630755 11.464592 4 h after dark 9.575997000000001 9.481774 9.67022 8 h after dark 10.551110000000001 9.684912 11.417308 12 h after dark 10.473513 10.473513 10.473513