condition mean min max 4 h after light 1.279345 1.00529 1.5534 8 h after light 1.561505 1.52636 1.59665 12 h after light 2.73649 2.51452 2.95846 4 h after dark 3.7929566666666665 3.5383 3.96759 8 h after dark 2.136973333333333 1.98858 2.42264 12 h after dark 1.7008333333333334 1.30996 2.21212