| 연도 | 구축수 | 구축액 | ||||||
|---|---|---|---|---|---|---|---|---|
| 활용 | 저활용 | 유휴 | 불용 | 활용 | 저활용 | 유휴 | 불용 | |
| 2005 | 557 | 12 | 4 | 399 | 95,678,800,248 | 1,064,745,005 | 178,452,835 | 47,718,519,403 |
| 2006 | 530 | 19 | 12 | 322 | 83,797,768,341 | 1,489,486,189 | 1,119,606,630 | 33,055,364,972 |
| 2007 | 598 | 19 | 14 | 245 | 456,512,315,175 | 1,708,435,311 | 2,647,510,055 | 34,300,914,022 |
| 2008 | 583 | 21 | 19 | 222 | 105,932,379,375 | 4,339,785,026 | 2,097,502,954 | 34,939,014,811 |
| 2009 | 659 | 20 | 18 | 210 | 120,735,714,639 | 2,102,633,525 | 3,155,395,640 | 40,046,146,684 |
| 2010 | 729 | 23 | 19 | 186 | 86,370,798,774 | 2,715,268,905 | 1,861,315,701 | 46,440,247,795 |
| 2011 | 876 | 33 | 19 | 153 | 99,432,801,740 | 3,344,415,690 | 1,879,381,492 | 16,197,857,378 |
| 2012 | 898 | 25 | 14 | 105 | 103,640,584,957 | 3,015,487,053 | 2,533,805,105 | 9,812,810,534 |
| 2013 | 861 | 33 | 6 | 40 | 102,293,070,773 | 3,145,870,803 | 303,713,070 | 4,433,860,057 |
| 2014 | 900 | 33 | 15 | 46 | 152,898,781,122 | 2,007,235,001 | 1,753,701,341 | 4,641,281,650 |
| 2015 | 807 | 15 | 17 | 21 | 131,246,774,578 | 2,389,174,916 | 10,696,226,752 | 1,351,589,560 |
| 2016 | 641 | 16 | 1 | 8 | 102,598,736,416 | 6,725,665,340 | 45,708,000 | 494,517,466 |
| 2017 | 685 | 14 | 4 | 3 | 102,000,114,017 | 2,426,790,068 | 2,230,889,920 | 359,800,000 |
| 2018 | 608 | 2 | 1 | 1 | 153,924,368,601 | 92,300,000 | 73,100,000 | 88,000,000 |
| 2019 | 573 | 0 | 0 | 1 | 84,292,870,117 | 0 | 0 | 37,730,000 |
| 2020 | 645 | 2 | 3 | 0 | 145,560,229,389 | 177,380,000 | 147,900,000 | 0 |
| 2021 | 857 | 2 | 3 | 0 | 160,402,659,103 | 2,435,621,700 | 165,914,180 | 0 |
| 2022 | 807 | 2 | 15 | 1 | 230,599,090,001 | 118,276,123 | 1,813,889,860 | 369,800,000 |
| 2023 | 834 | 2 | 6 | 1 | 178,840,564,317 | 102,168,000 | 1,473,836,000 | 1,000,000 |
| 2024 | 693 | 2 | 1 | 0 | 125,984,890,919 | 269,280,194 | 43,351,000 | 0 |
| 2025 | 588 | 3 | 4 | 0 | 119,472,869,461 | 238,323,840 | 3,687,206,400 | 0 |