2011-05-21	520	10.2		50.98	"back and forth to work"
2011-05-27	555	11.38		48.77	""
2011-05-31	558	10.94		51.01	""
2011-06-06	578	11.46		50.44	""
2011-06-11	466	9.4		49.57	""