condition	mean	min	max
4 h after light	2.986415	2.75089	3.22194
8 h after light	4.1869250000000005	3.69938	4.67447
12 h after light	2.50945	2.01611	3.00279
4 h after dark	2.283845	2.20233	2.36536
8 h after dark	2.54642	2.47858	2.61426
12 h after dark	3.36516	3.14947	3.58085