condition mean min max 4 h after light 10.3737285 8.969768 11.777689 8 h after light 10.301184500000002 10.066465 10.535904 12 h after light 9.49394 9.368883 9.618997 4 h after dark 9.428889999999999 9.207165 9.650615 8 h after dark 9.9723805 9.918354 10.026407 12 h after dark 10.586879 10.586879 10.586879