condition	mean	min	max
4 h after light	7.804056666666667	7.48315	8.01015
8 h after light	7.27614	7.11388	7.53175
12 h after light	7.495476666666667	7.21449	7.67593
4 h after dark	7.36735	7.23412	7.53056
8 h after dark	7.444116666666667	7.303999999999999	7.5389800000000005
12 h after dark	7.50889	7.25002	7.69389