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Voyage and Vessel operating expenses (Tables) | 12 Months Ended
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Dec. 31, 2020
Voyage And Vessel Operating Expenses |
Voyage and Vessel operating expenses - Voyage expenses (Table) | Voyage and Vessel operating expenses - Voyage expenses (Table)
| Years ended December 31,
|  | 2018 |  | 2019 |  | 2020
Voyage expenses |  |  |  |  |  |
Port charges | $ | 37,215 | $ | 63,576 | $ | 55,738
Bunkers |  | 72,287 |  | 146,089 |  | 130,800
Commissions – third parties |  | 6,179 |  | 6,828 |  | 6,134
Commissions – related parties (Note 3) |  | 3,400 |  | 3,850 |  | 3,780
Miscellaneous |  | 2,515 |  | 2,619 |  | 3,606
Total voyage expenses | $ | 121,596 | $ | 222,962 | $ | 200,058
Voyage and Vessel operating expenses - Vessel operating expenses (Table) | Voyage and Vessel operating expenses - Vessel operating expenses (Table)
Vessel operating expenses |  |  |  |  |  |
Crew wages and related costs | $ | 80,360 | $ | 103,701 | $ | 109,311
Insurances |  | 7,544 |  | 10,311 |  | 13,002
Maintenance, repairs, spares and stores |  | 26,368 |  | 25,675 |  | 37,947
Lubricants |  | 8,494 |  | 9,833 |  | 10,669
Tonnage taxes (Note 16) |  | 1,506 |  | 2,087 |  | 2,103
Pre-delivery and Pre-joining expenses |  | 1,234 |  | 1,507 |  | -
Miscellaneous |  | 3,366 |  | 6,948 |  | 5,511
Total vessel operating expenses | $ | 128,872 | $ | 160,062 | $ | 178,543

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