condition	mean	min	max
4 h after light	8125.7	8125.7	8125.7
8 h after light	8323.0	8129.3	8516.7
12 h after light	8145.9	8112.6	8179.2
4 h after dark	7602.5	6979.9	8225.1
8 h after dark	7483.200000000001	7300.8	7665.6
12 h after dark	7179.9	6988.8	7371.0