condition	mean	min	max
4 h after light	6.449386666666666	6.1444	6.6165899999999995
8 h after light	6.25276	5.868530000000001	6.609719999999999
12 h after light	6.17564	6.04387	6.28984
4 h after dark	6.373033333333333	6.22575	6.586539999999999
8 h after dark	6.601273333333333	6.29439	6.8013
12 h after dark	6.42652	6.1159099999999995	6.628089999999999