condition	mean	min	max
4 h after light	3541.8191295	2921.125403	4162.512856
8 h after light	4281.7975135	4218.555278	4345.039749
12 h after light	4028.9937775	3817.024729	4240.962826
4 h after dark	3594.7091145	3399.544609	3789.87362
8 h after dark	3828.500223	3748.773692	3908.226754
12 h after dark	3285.817771	3285.817771	3285.817771