condition	mean	min	max
4 h after light	7.603576666666666	7.369089999999999	7.79828
8 h after light	7.7905066666666665	7.5917	7.9355199999999995
12 h after light	8.147856666666668	7.895760000000001	8.3841
4 h after dark	7.964883333333334	7.82253	8.21362
8 h after dark	7.836986666666666	7.716019999999999	7.929819999999999
12 h after dark	7.84178	7.79228	7.9119600000000005