In 2021, expenditures on natural gas increased (38.7 percent) to $1,203.0 million from $867.6 million in 2020. The industrial sector spent $516.5 million (43 percent of the total spent), the residential sector spent $348.9 million (29 percent), and the commercial sector spent $212.9 million (18 percent). The electric power sector spent $118.6 million (10 percent), and the transportation sector spent $6.1 million (less than one percent of the total).
The expenditures are in nominal dollars to provide a better comparison.