Table 3 Number and rate* (95% confidence interval) of triplet and higher-order (triplet+) multiple live births in Canada (excluding Ontario) and the United States, 1991–2009

1991

250847

131

52.2 (43.7-62.0)

4110907

3346

81.4 (78.7-84.2)

1992

247898

130

52.4 (43.8-62.3)

4065014

3883

95.5 (92.6-98.6)

1993

240468

196

81.5 (70.5-93.8)

4000240

4168

104.2 (101.1-107.4)

1994

238069

148

62.2 (52.5-73.0)

3952767

4594

116.2 (112.9-119.6)

1995

231813

118

50.9 (42.1-61.0)

3899589

4973

127.5 (124.0-131.1)

1996

226180

141

62.3 (52.5-73.5)

3891494

5939

152.6 (148.8-156.6)

1997

215588

218

101.1 (88.1-115.5)

3880894

6737

173.6 (169.5-177.8)

1998

209795

204

97.2 (84.4-111.5)

3941553

7625

193.5 (189.2-197.9)

1999

206169

194

94.1 (81.4-108.3)

3959417

7321

184.9 (180.7-189.1)

2000

200476

164

81.8 (69.8-95.3)

4058814

7325

180.5 (176.4-184.6)

2001

202036

202

100.0 (86.7-114.8)

4025933

7471

185.6 (181.4-189.8)

2002

200287

209

104.4 (90.7-119.5)

4021726

7401

184.0 (179.8-188.3)

2003

204279

227

111.1 (97.2-126.5)

4089950

7663

187.4 (183.2-191.6)

2004

204521

228

111.5 (97.5-127.0)

4112052

7275

176.9 (172.9-181.1)

2005

208416

187

89.7 (77.3-103.5)

4138349

6694

161.8 (157.9-165.7)

2006

219202

157

71.6 (60.9-83.8)

4265555

6540

153.3 (149.6-157.1)

2007

229428

178

77.6 (66.6-89.8)

4316233

6427

148.9 (145.3-152.6)

2008

237342

202

85.1 (73.8-97.6)

4247694

6268

147.6 (143.9-151.2)

2009

240823

201

83.5 (72.3-95.8)

4130665

6340

153.5 (149.7-157.3)