condition mean min max 4 h after light 9.6143495 9.368883 9.859816 8 h after light 10.6438185 10.482574 10.805063 12 h after light 11.904250000000001 11.531077 12.277423 4 h after dark 12.3632595 12.327988 12.398531 8 h after dark 12.575261999999999 12.558304 12.59222 12 h after dark 11.189128 11.189128 11.189128