condition	mean	min	max
4 h after light	8.513656666666668	8.43449	8.621960000000001
8 h after light	8.435443333333334	8.356589999999999	8.55003
12 h after light	8.349969999999999	8.0337	8.56569
4 h after dark	8.394	8.22509	8.482389999999999
8 h after dark	8.380256666666668	8.31447	8.498330000000001
12 h after dark	8.366660000000001	8.30366	8.45991