condition	mean	min	max
4 h after light	4578.9	4578.9	4578.9
8 h after light	3984.4	3652.0	4316.8
12 h after light	3229.05	3189.4	3268.7
4 h after dark	3415.3	2572.1	4258.5
8 h after dark	3567.5	2917.9	4217.1
12 h after dark	3739.35	3149.8	4328.9