condition	mean	min	max
4 h after light	1.91372	1.78914	2.0383
8 h after light	1.514005	1.35502	1.67299
12 h after light	1.890725	1.6549	2.12655
4 h after dark	2.43546	2.40741	2.46351
8 h after dark	2.16035	1.93092	2.38978
12 h after dark	2.452275	2.38456	2.51999