condition	mean	min	max
4 h after light	8034.712777666667	5800.233333	10128.565
8 h after light	8007.968333333333	7088.02	8636.645
12 h after light	3439.435555333333	2724.783333	3933.093333
1.5 h after dark	914.8555555666667	680.79	1170.14
5.5 h after dark	987.1888888999999	452.71	1638.95
9.5 h after dark	3896.911111	2159.66	4956.503333