condition	mean	min	max
4 h after light	7.8976045	7.738414	8.056795
8 h after light	8.347349	7.490009	9.204689
12 h after light	8.939119	8.831878	9.04636
4 h after dark	8.3607975	7.604963	9.116632
8 h after dark	8.5974595	7.815157	9.379762
12 h after dark	8.088191	8.088191	8.088191