condition	mean	min	max
4 h after light	957.0	957.0	957.0
8 h after light	932.8	920.9	944.7
12 h after light	781.45	726.1	836.8
4 h after dark	1068.75	758.9	1378.6
8 h after dark	1185.95	1140.4	1231.5
12 h after dark	1180.25	1168.0	1192.5