"betaz v time
0.0000000000000	-0.0000000000000
0.0250000000000	-0.0000069842390
0.0500000000000	-0.0000395490299
0.0750000000000	-0.0001200747581
0.1000000000000	-0.0002668683422
0.1250000000000	-0.0004940873897
0.1500000000000	-0.0008119983452
0.1750000000000	-0.0012303669508
0.2000000000000	-0.0017543038970
0.2250000000000	-0.0023859931708
0.2500000000000	-0.0031260201220