condition	mean	min	max
4 h after light	9.7432935	9.444223	10.042364
8 h after light	8.391014	8.310432	8.471596
12 h after light	7.7058425	7.564568	7.847117
4 h after dark	8.2026735	7.714898	8.690449
8 h after dark	8.6223665	8.073405	9.171328
12 h after dark	8.562187	8.562187	8.562187