How often do pipelines blow up?

How often do pipelines blow up? 

By CNNWire, Fox8 News (Nov 1, 2016) – “There have been 135 excavation accidents involving pipelines carrying hazardous liquids, such as gasoline or crude oil, over the last 10 years, according to Carl Weimer, executive director of the Pipeline Safety Trust, an industry watchdog group. That’s roughly one a month. But there has only been one fatality from such an accident in the last ten years, when a Georgia man was killed when a pipeline carrying liquid propane ruptured in 2010. ‘Fatalities are fortunately pretty rare,’ said Weimer. ‘But things do go terribly wrong sometimes.’”