This increases the productivity of successful wells, allowing for more petroleum and natural gas to be extracted from the ground. In fact, 3-D seismic can increase the recovery rates of productive wells to 40 to 50 percent or greater, as opposed to 25 to 30 percent with traditional 2-D exploration techniques.
The total population of Canada currently is 35 million people. the Total population of the United States The population of the United States right now is 317 million people Population distribution pattern in Canada The population distribution is that more than 90 percent of all Canadians live within 150 kilometers (95 miles) of the country's southern border.
The 100 cities had a total population of 21,475,858 so of the 100 largest population centres, about 87.4% live within 100 miles / 160 km of the border with the USA. Given that 80% of Canada's populace lives in towns larger than 10,000, we can assume that the proportion holds fairly true.