condition	mean	min	max
4 h after light	1.15136	1.12386	1.17886
8 h after light	2.893435	2.80917	2.9777
12 h after light	2.60737	2.2415	2.97324
4 h after dark	6.111235	6.07745	6.14502
8 h after dark	3.634045	3.29604	3.97205
12 h after dark	2.253745	2.24877	2.25872