condition	mean	min	max
0 h after light	41.27645	39.8951	42.6578
4 h after light	27.1083	25.3946	28.822
8 h after light	19.0298	18.2346	19.825
4 h after dark	24.62675	23.2586	25.9949
8 h after dark	55.37835	54.8207	55.936
12 h after dark	39.7531	37.0922	42.414