condition	mean	min	max
4 h after light	498.0	498.0	498.0
8 h after light	448.85	396.7	501.0
12 h after light	430.4	384.3	476.5
4 h after dark	647.5	541.9	753.1
8 h after dark	660.3	649.2	671.4
12 h after dark	624.9	569.8	680.0