condition	mean	min	max
4 h after light	5.76187	5.7527099999999995	5.7778
8 h after light	5.84462	5.8249	5.8592900000000006
12 h after light	5.68903	5.51732	5.79972
4 h after dark	5.722453333333333	5.64502	5.7733
8 h after dark	5.769003333333333	5.7510900000000005	5.784269999999999
12 h after dark	5.7389133333333335	5.42079	5.90376