condition	mean	min	max
4 h after light	18.505517	14.868235	22.142799
8 h after light	16.3144295	15.247335	17.381524
12 h after light	13.8023755	13.45644	14.148311
4 h after dark	18.617476	16.230266	21.004686
8 h after dark	59.693517	34.410906	84.976128
12 h after dark	16.441793	16.441793	16.441793