condition	mean	min	max
4 h after light	22094.098886666667	20594.60333	23379.98
8 h after light	22426.39777666667	20757.47	23569.97333
12 h after light	22768.195553333335	21203.31333	23562.46333
1.5 h after dark	21943.92889	18190.35667	25310.86333
5.5 h after dark	19902.273333333334	15841.50667	26053.90333
9.5 h after dark	22642.711113333335	18383.42667	25344.88667