condition	mean	min	max
4 h after light	20091.3	20091.3	20091.3
8 h after light	20224.050000000003	19691.7	20756.4
12 h after light	19576.800000000003	19387.9	19765.7
4 h after dark	19106.45	18517.0	19695.9
8 h after dark	14866.5	13292.1	16440.9
12 h after dark	11630.2	10682.9	12577.5