condition	mean	min	max
4 h after light	18.3322225	16.123734	20.540711
8 h after light	14.139106	12.903621	15.374591
12 h after light	11.909067499999999	9.808519	14.009616
4 h after dark	15.084989	14.870664	15.299314
8 h after dark	13.21951	12.164764	14.274256
12 h after dark	11.373855	11.373855	11.373855