| Ship type 1 | Ship type 2 | Ship type 3 | Ship type 4 | Ship type 5 |
Ship cost | 60,000,000 | 83,000,000 | 93,000,000 | 108,000,000 | 147,000,000 |
Staff salary | 839,964 | 839,964 | 942,684 | 942,684 | 1,045,404 |
Annual ship depreciation | 3,600,000 | 49,800,000 | 55,800,000 | 64,800,000 | 88,200,000 |
Annual repair fee | 1,800,000 | 2,490,000 | 2,790,000 | 3,240,000 | 4,410,000 |
Annual insurance premium | 120,000 | 166,000 | 186,000 | 216,000 | 2,940,000 |