condition	mean	min	max
4 h after light	4.287955	3.96556	4.61035
8 h after light	4.084345	3.89713	4.27156
12 h after light	5.88952	5.84762	5.93142
4 h after dark	7.25706	7.05966	7.41586
8 h after dark	6.605613333333333	6.41094	6.86698
12 h after dark	5.55469	4.7383	6.47156