condition	mean	min	max
4 h after light	16.602336	15.706874	17.497798
8 h after light	16.282181	16.247086	16.317276
12 h after light	16.7676965	15.011148	18.524245
4 h after dark	16.91134	16.324882	17.497798
8 h after dark	18.452301499999997	18.22198	18.682623
12 h after dark	21.032522	21.032522	21.032522