condition	mean	min	max
0 h after light	21.98245	21.6898	22.2751
4 h after light	17.0069	16.193	17.8208
8 h after light	15.8229	14.9131	16.7327
4 h after dark	17.62175	16.211	19.0325
8 h after dark	18.14685	17.9358	18.3579
12 h after dark	18.89425	15.9916	21.7969