Trolley 2 silhouette 11 months 0 Trolley 3 silhouette 11 months 2 Trolley 1 silhouette 11 months 1 Delivery man with Trolley silhouette 11 months 4 Father and baby in a stroller silhouette 11 months 0 Shopping cart silhouette 12 months 0 Shopping cart silhouette 12 months 0 Shopping cart silhouette 12 months 0 Nursing home silhouette about 1 year 1 Farmer Pushing a Wheelbarrow silhouette about 1 year 0 Pushing person silhouette almost 3 years 18 Bicycle silhouette almost 4 years 35