condition	mean	min	max
4 h after light	6.969735	6.78072	7.15875
8 h after light	6.488045	6.31787	6.65822
12 h after light	11.3751	11.005	11.7452
4 h after dark	18.15025	18.0578	18.2427
8 h after dark	26.73615	24.2736	29.1987
12 h after dark	15.7452	15.6003	15.8901