단위:천원
| 연도 | 계 | 영업수입 | 영업외수입 | 자본적수입 |
|---|---|---|---|---|
| 2025 | 12,097,200 | 12,054,640 | - | 42,560 |
| 2024 | 11,892,600 | 11,841,210 | - | 51,390 |
| 2023 | 11,285,000 | 11,266,150 | - | 18,850 |
| 2022 | 10,678,000 | 10,619,500 | - | 58,500 |
| 2021 | 9,745,000 | 9,688,000 | - | 57,000 |
| 2020 | 9,291,500 | 9,229,000 | - | 62,500 |
| 2019 | 9,866,200 | 9,794,000 | - | 72,200 |
| 2018 | 9,593,000 | 9,526,000 | - | 67,000 |
| 2017 | 8,494,800 | 8,430,000 | - | 64,800 |
| 2016 | 7,885,120 | 7,799,000 | - | 86,120 |
| 2015 | 7,576,300 | 7,500,000 | - | 76,300 |
| 2014 | 7,180,700 | 7,100,000 | - | 80,700 |
| 2013 | 6,710,100 | 6,640,000 | - | 70,100 |
| 2012 | 6,296,247 | 6,177,897 | 40,000 | 78,350 |
| 2011 | 4,797,200 | 4,700,000 | 40,000 | 57,200 |
| 2010 | 4,373,232 | 4,300,000 | 73,232 | |
| 2009 | 4,158,529 | 4,100,000 | 58,529 | |
| 2008 | 3,870,960 | 3,800,000 | 70,960 | |
| 2007 | 3,692,832 | 3,619,475 | 73,357 | |
| 2006 | 3,216,000 | 3,184,000 | 32,000 | |
| 2005 | 3,059,724 | 3,039,000 | 20,724 | |
| 2004 | 3,300,926 | 3,253,000 | 6,000 | 41,926 |
| 2003 | 3,074,830 | 3,009,830 | 5,000 | 60,000 |
| 2002 | 1,932,689 | 1,923,233 | 9,456 | |
| 2001 | 1,508,135 | 1,208,135 | 300,000 |