condition	mean	min	max
4 h after light	40.68145	39.9911	41.3718
8 h after light	50.3578	49.4265	51.2891
12 h after light	66.99115	66.899	67.0833
4 h after dark	34.33505	33.3466	35.3235
8 h after dark	41.569	40.6115	42.5265
12 h after dark	40.8296	39.3314	42.3278