condition	mean	min	max
4 h after light	6.89734	5.3499	8.44478
8 h after light	6.820005	5.90334	7.73667
12 h after light	6.39468	5.13705	7.65231
4 h after dark	14.73425	13.5505	15.918
8 h after dark	11.3375	10.6882	11.9868
12 h after dark	9.795935	9.67361	9.91826