condition	mean	min	max
4 h after light	3.815326666666667	3.8064400000000003	3.83124
8 h after light	3.8051366666666664	3.79399	3.8208699999999998
12 h after light	3.8472600000000003	3.7801400000000003	3.97275
4 h after dark	3.8099833333333333	3.7361699999999995	3.8668400000000003
8 h after dark	3.7915033333333334	3.7516300000000005	3.81576
12 h after dark	3.718656666666667	3.70949	3.7310300000000005