condition	mean	min	max
4 h after light	5.473863333333333	5.31964	5.647469999999999
8 h after light	5.64469	5.5246900000000005	5.79781
12 h after light	5.740773333333333	5.67106	5.83655
4 h after dark	5.794443333333334	5.57341	6.0854
8 h after dark	5.823896666666666	5.55762	6.14352
12 h after dark	5.5831800000000005	5.50014	5.69022