condition	mean	min	max
4 h after light	17.93825	17.6906	18.1859
8 h after light	15.3629	15.3163	15.4095
12 h after light	20.6081	20.1473	21.0689
4 h after dark	27.97255	27.1292	28.8159
8 h after dark	28.933349999999997	28.1573	29.7094
12 h after dark	25.12025	24.8112	25.4293