condition	mean	min	max
4 h after light	4.27536	3.20361	5.34711
8 h after light	3.867105	3.81103	3.92318
12 h after light	4.97966	4.30291	5.65641
4 h after dark	8.123113333333333	7.15697	8.60786
8 h after dark	6.864303333333333	6.15508	7.87059
12 h after dark	4.6436166666666665	3.1198	5.86913