Only Merchant Vessels Of 100 Tons Gross And Over Are Included. Data Shown Are For End Of Quarter, And Annual Figures Are Means Of Quarterly Values. Suspensions Are Vessels Previously Commenced But On Which No Progress Has Been Made During Quarter. No Suspensions 1915-20 And From Third Quarter Of 1924 Through 1931. Seasonally Adjusted Data Not Used 1916-22, 1936-39. Gross Tonnage Represents, In Units Of 100 Cubic Feet, The Entire Capacity Of The Vessel, Including Crew And Engine Space. Source: Lloyd'S Register Shipbuilding Returns And Letter From London Office Of Lloyd'S Register Of Shipping; Computed From These Data By NBER
This NBER data series q02099a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.
NBER Indicator: q02099a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Tonnage of Vessels Under Construction, Less Suspensions for Great Britain and Ireland [Q0299AGBQ561NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q0299AGBQ561NNBR/, October 9, 2015.