condition	mean	min	max
4 h after light	21.31115	19.827	22.7953
8 h after light	29.9645	26.2843	33.6447
12 h after light	18.430100000000003	17.2585	19.6017
4 h after dark	17.3355	16.6859	17.9851
8 h after dark	25.0041	23.3184	26.6898
12 h after dark	34.067949999999996	32.7573	35.3786