condition	mean	min	max
4 h after light	15.17695	14.4641	15.8898
8 h after light	11.3246	10.9304	11.7188
12 h after light	18.69575	17.9676	19.4239
4 h after dark	9.780325000000001	8.83805	10.7226
8 h after dark	10.61795	10.0973	11.1386
12 h after dark	10.558900000000001	10.207	10.9108