condition	mean	min	max
4 h after light	2.060435	1.85662	2.26425
8 h after light	1.7576200000000002	1.75659	1.75865
12 h after light	1.2085345	0.998239	1.41883
4 h after dark	1.6839899999999999	1.58551	1.8455
8 h after dark	1.82791	1.73237	1.94706
12 h after dark	2.20315	1.79704	2.57179