Table 1.

Number of laparoscopic and open cases by year of study, with subgroup of laparoscopic completed and converted procedures in italics

	2002–2003		2003–2004		2004–2005		2005–2006		2006–2007		2007–2008		2008–2009		2009–2010		2010–2011		2011–2012		Total
	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%
Open	12,082	98.9	11,716	98.1	11,603	95.8	12,057	91.8	11,337	86.6	10,779	78.8	9853	68.1	8703	60.3	8358	55.3	7152	49.2	103,640	76.9
Laparoscopic	134	1.1	230	1.9	510	4.2	1070	8.2	1759	13.4	2900	21.2	4609	31.9	5721	39.7	6749	44.7	7391	50.8	31,073	23.1
Completed	109	81.3	204	88.7	453	88.8	921	86.1	1514	86.1	2499	86.2	3966	86.0	4951	86.5	5785	85.7	6296	85.2	26,698	85.9
Converted	25	18.7	26	11.3	57	11.2	149	13.9	245	13.9	401	13.8	643	14.0	770	13.5	964	14.3	1095	14.8	4375	14.1
Total	12,216		11,946		12,113		13,127		13,096		13,679		14,462		14,424		15,107		14,543		134,713