Upvote:4
I won't pretend that this is a comprehensive answer (or close to one) but I can offer some expenditure figures for Great Britain for the period 1803-1815.
These are taken from The Foundations of British Maritime Ascendancy: Resources, Logistics and the State 1755-1815, Roger Morriss (Cambridge UP, 2011) which in turn took them from Abstract of British Historical Statistics, Mitchell & Dean (Cambridge, 1962).
Year Navy Army Civil Debt Total (£000,000)
1803 12.0 13.3 6.7 20.4 54.8
1804 8.1 15.5 5.1 20.7 53.0
1805 11.9 22.2 5.2 20.7 62.8
1806 14.3 25.8 5.2 22.3 71.4
1807 16.3 24.8 4.7 23.2 72.9
1808 16.9 24.0 5.3 23.8 73.3
1809 17.6 27.2 4.7 23.1 78.0
1810 19.4 28.9 5.2 24.2 81.5
1811 20.0 28.0 5.1 24.4 81.6
1812 19.6 33.8 5.2 24.6 87.3
1813 20.8 36.5 5.4 26.4 94.8
1814 22.5 49.6 5.3 27.3 111.1
1815 22.8 49.6 5.8 30.3 112.9
Total 222.2 379.2 68.9 311.4 1035.4
The figures are in Pounds Sterling and are gross government expenditure. The figure for the Army includes the Ordnance (and so includes some Navy expenditure). 'Civil' is civilian government expenditure while 'Debt' is the cost of servicing the country's debt.