condition	mean	min	max
4 h after light	7.209483333333333	7.081169999999999	7.281619999999999
8 h after light	6.4425066666666675	6.257680000000001	6.79696
12 h after light	7.0457	6.937060000000001	7.12487
4 h after dark	6.915206666666666	6.6776800000000005	7.24212
8 h after dark	6.74289	6.54536	7.06203
12 h after dark	6.8368166666666665	6.65188	7.01237