condition	mean	min	max
4 h after light	18.9866925	18.243605	19.72978
8 h after light	19.548173	18.774494	20.321852
12 h after light	14.673867	12.620251	16.727483
4 h after dark	14.4369655	14.082116	14.791815
8 h after dark	13.417910500000001	11.532621	15.3032
12 h after dark	13.816934	13.816934	13.816934