condition	mean	min	max
4 h after light	1993.4	1993.4	1993.4
8 h after light	1869.9	1768.7	1971.1
12 h after light	1541.85	1493.2	1590.5
4 h after dark	2196.1	1130.5	3261.7
8 h after dark	2721.0	2504.8	2937.2
12 h after dark	2400.2	2140.3	2660.1