condition	mean	min	max
4 h after light	18.355878500000003	17.721554	18.990203
8 h after light	15.863691	14.985861	16.741521
12 h after light	16.771500500000002	15.557261	17.98574
4 h after dark	19.524044500000002	17.98574	21.062349
8 h after dark	19.543297000000003	18.189902	20.896692
12 h after dark	17.98574	17.98574	17.98574