condition	mean	min	max
4 h after light	7.40411	6.18586	8.62236
8 h after light	11.5322	10.7803	12.2841
12 h after light	21.39145	21.207	21.5759
4 h after dark	28.9695	28.0562	29.8828
8 h after dark	23.66445	22.9977	24.3312
12 h after dark	17.614449999999998	16.7546	18.4743