condition	mean	min	max
4 h after light	15.1066	13.4246	16.7886
8 h after light	15.1223	15.1187	15.1259
12 h after light	15.4774	15.3363	15.6185
4 h after dark	21.2419	19.8764	23.2319
8 h after dark	18.82603333333333	17.8935	19.9744
12 h after dark	16.955733333333335	16.2091	17.922