Table:
Year Ended December 31,

(in thousands of U.S. dollars, except calendar-ship-days)	2019	2018

Revenues	601,256	510,762

Voyage expenses	(21,387)	(28,237)

Vessel operating expenses	(111,585)	(117,658)

Time-charter hire expense	(19,994)	(7,670)

Depreciation and amortization	(136,765)	(124,378)

General and administrative expenses (1)	(22,521)	(28,512)

Write-down of and sale of vessels	13,564	(53,863)

Restructuring charges	(3,315)	(1,845)

Income from vessel operations	299,253	148,599

Liquefied Gas Carriers (1)	300,520	169,918

Conventional Tankers (1)(2)	(1,267)	(21,319)

299,253	148,599

Equity income – Liquefied Gas Carriers	58,819	53,546

Calendar-Ship-Days (3)

Liquefied Gas Carriers	11,650	10,125

Conventional Tankers	317	1,389

I need to know the count of rows and columns in this specific table. Output the final answer as JSON in the format {"row_number": "m", "column_number": "n"}.

This table has 18 rows and 3 columns. Thus, the final answer is {"row_number": "18", "column_number": "3"}.