condition	mean	min	max
4 h after light	13.889299999999999	12.4904	15.2882
8 h after light	13.1038	12.8508	13.3568
12 h after light	16.2066	15.2319	17.1813
4 h after dark	22.8425	21.3487	23.8264
8 h after dark	23.391966666666665	22.2736	23.9754
12 h after dark	18.7787	17.0314	21.0257