condition	mean	min	max
4 h after light	17.3082	15.7074	18.909
8 h after light	16.14875	15.9745	16.323
12 h after light	17.4487	16.4882	18.4092
4 h after dark	22.532933333333332	22.1535	23.1725
8 h after dark	20.735	19.9569	21.5676
12 h after dark	17.8731	17.5543	18.1353