Most developed countries do not have a compulsory military service

Most developed countries do not have a compulsory military service. The following are the statistics:

Country	Population	Source of Military Recruitment	Military expenditures percent of GDP	GDP – per capita (PPP)
AUSTRIA	8,199,783	7 months compulsory	0.9%	$34,600
BELGIUM	10,392,226	voluntary	0.9%	$33,000
CANADA	33,390,141	voluntary	1.1%	$35,600
CZECH REPUBLIC	10,228,744	voluntary	1.81%	$21,900
DENMARK	5,468,120	4 to 12 months compulsory	1.5%	$37,000
FINLAND	5,238,460	compulsory	2%	$33,700
FRANCE	63,713,926	voluntary	2.6%	$31,100
GERMANY	82,400,996	9-month compulsory	1.5%	$31,900
GREECE:	10,706,290	12-15 month	4.3%	$24,000
HUNGARY	9,956,108	voluntary	1.75%	$17,600
ICELAND	301,931	no regular military forces Protected by US	0%	$38,000
IRELAND	4,109,086	voluntary	0.9%	$44,500
ITALY:	58,147,733	voluntary	1.8%	$30,200
JAPAN:	127,433,494	voluntary	0.8%	$33,100
KOREA	49,044,790	24-28 months compulsory	2.7%	$24,500
LUXEMBOURG	480,222	voluntary	0.9%	$71,400
MEXICO	108,700,891	12 months compulsory (Navy and Air Force service is all voluntary)	0.5%	$10,700
NETHERLANDS:	16,570,613	voluntary	1.6%	$32,100
NEW ZEALAND	4,115,771	voluntary	1%	$26,200
NORWAY:	4,627,926	12-month compulsory	1.9%	$46,300
POLAND:	38,518,241	12 to 9 months compulsory	1.71%	$14,300
PORTUGAL	10,642,836	voluntary	2.3%	$19,800
SLOVAK REPUBLIC	5,447,502	voluntary	1.87%	$18,200
SPAIN	40,448,191	7-15 months compulsory	1.2%	$27,400
SWEDEN	9,031,088	voluntary	1.5%	$32,200
SWITZERLAND	7,554,661	260 days compulsory	1%	$34,000
TURKEY	71,158,647	voluntary	5.3%	$9,000
UNITED KINGDOM	60,776,238	voluntary	2.4%	$31,800
UNITED STATES	301,139,947	voluntary	4.06%	$44,000
Taiwan	22,858,872	12-14 month compulsory	2.2%	$29,500

Source: The World Factbook
Countries in this table are selected base on their OECD membership.
Almost all developed countries are member of OECD.
Of all OECD members only 11 out of 30 countries have a compulsory military service.