condition	mean	min	max
4 h after light	21.63655	20.821	22.4521
8 h after light	17.4848	17.022	17.9476
12 h after light	13.76055	13.1706	14.3505
4 h after dark	13.1239	12.7626	13.4852
8 h after dark	13.5779	13.3508	13.805
12 h after dark	15.693850000000001	14.7551	16.6326