condition	mean	min	max
0 h after light	9.423945	8.61179	10.2361
4 h after light	8.023725	7.23919	8.80826
8 h after light	13.500350000000001	13.3686	13.6321
4 h after dark	17.4799	16.9158	18.044
8 h after dark	17.41735	16.1149	18.7198
12 h after dark	11.252475	9.67525	12.8297