condition	mean	min	max
4 h after light	20.9579585	19.337415	22.578502
8 h after light	16.4855435	14.574694	18.396393
12 h after light	13.9388275	13.419803	14.457852
4 h after dark	12.7165365	11.784848	13.648225
8 h after dark	15.089953	13.697754	16.482152
12 h after dark	15.211016	15.211016	15.211016