condition	mean	min	max
4 h after light	6.0817033333333335	5.98197	6.18661
8 h after light	6.071753333333334	5.89636	6.2337
12 h after light	6.1884	6.07816	6.2561599999999995
4 h after dark	6.0392133333333335	5.90431	6.1952
8 h after dark	6.12476	5.88469	6.5374300000000005
12 h after dark	5.933766666666667	5.68697	6.13839