In 2011, nonresidential building construction provided almost a quarter of the 195,000 jobs for contractors, with average salaries at $45.41 per hour, or $94,450 per year. Building equipment contractors contained 14 percent of the positions at a mean $46.52 per hour, or $96,750 per year.
Burps can also be caused by drinking carbonated beverages, such as beer, soft drinks, energy drinks, and wine in which case the expelled gas is primarily carbon dioxide from the drink itself. Common diabetes drugs metformin and Byetta can cause burping, especially at higher doses. This often resolves in a few weeks.
Persistent belching could be a sign of digestive conditions that require medical treatment. Some examples are delayed gastric emptying (gastroparesis) and peptic ulcer disease (painful sores in the stomach lining). Gallstones and gallbladder problems can, in some cases, cause symptoms such as belching. Even more rarely, cancer of the stomach or the oesophagus can explain the severe burping. If the burping is persistent and accompanied by symptoms such as nausea, pain, bloody stools, weight loss or fever, you should consult a doctor. 7 tips to prevent excessive belching and burping