condition	mean	min	max
4 h after light	7.130536666666666	7.08765	7.19389
8 h after light	7.188906666666666	7.07143	7.3168
12 h after light	7.20689	7.047219999999999	7.3038300000000005
4 h after dark	7.259916666666666	7.248760000000001	7.26917
8 h after dark	7.218563333333333	7.07459	7.2998199999999995
12 h after dark	7.0432	6.902939999999999	7.18336