condition	mean	min	max
0 h after light	20.4272	20.3513	20.5031
4 h after light	22.99055	20.5859	25.3952
8 h after light	17.60775	17.121	18.0945
4 h after dark	25.8231	25.3094	26.3368
8 h after dark	20.69695	20.5636	20.8303
12 h after dark	20.1056	19.6303	20.5809