condition	mean	min	max
0 h after light	15.826899999999998	12.8543	18.7995
4 h after light	18.0704	16.7229	19.4179
8 h after light	47.07825	41.3111	52.8454
4 h after dark	37.57745	32.6595	42.4954
8 h after dark	22.4249	21.3385	23.5113
12 h after dark	18.99405	17.5822	20.4059