condition	mean	min	max
4 h after light	17.8705	17.1612	18.5798
8 h after light	12.62065	11.0878	14.1535
12 h after light	12.90815	10.778	15.0383
4 h after dark	30.304199999999998	27.9871	33.2529
8 h after dark	31.351366666666664	29.3785	32.4507
12 h after dark	34.614466666666665	29.5448	37.5268