condition	mean	min	max
4 h after light	1191.3	1191.3	1191.3
8 h after light	1242.1	1215.1	1269.1
12 h after light	1292.3	1129.0	1455.6
4 h after dark	1814.35	1713.9	1914.8
8 h after dark	2047.6	2044.2	2051.0
12 h after dark	1911.85	1857.6	1966.1