condition	mean	min	max
4 h after light	15.532139	15.365241	15.699037
8 h after light	10.3844605	10.264895	10.504026
12 h after light	10.519809500000001	9.302983	11.736636
4 h after dark	9.4265395	9.368883	9.484196
8 h after dark	8.3365145	8.112384	8.560645
12 h after dark	15.540681	15.540681	15.540681