Table 2 Description of Demographic Information of Chronic Sinusitis

Years	Interval 10 years age
	Total	0-9	10-19	20-29	30-39	40-49	50-59	60-69	70-79	80~
2010	1,941,776	555,072	329,398	201,475	282,530	226,591	184,536	118,738	54,831	9,085
2011	1,989,858	539,365	321,784	208,286	292,987	239,894	209,820	126,380	61,075	10,429
2012	2,087,893	565,295	319,281	221,638	311,065	252,038	224,798	133,634	69,369	12,389
2013	2,096,763	580,292	300,122	217,681	310,679	253,622	230,620	137,248	73,127	13,522
2014	2,128,453	523,320	303,087	229,598	327,471	276,429	247,176	149,005	78,977	15,558
2015	2,066,158	486,381	285,535	230,145	315,745	272,433	244,743	154,406	80,147	17,220
2016	2,095,875	473,871	269,370	242,955	332,182	280,212	250,242	168,319	80,479	19,006
2017	2,183,021	468,133	285,588	266,431	350,682	293,340	257,155	179,238	84,228	21,083
Mean	2,073,724.6	523,966.13	301,770.63	227,276.13	315,417.63	261,819.88	231,136.25	145,871.00	72,779.13	14,786.50
SD	76,218.06	43,301.76	20,874.26	20,503.42	21,699.70	22,496.23	24,351.09	20,839.99	1,0378.11	4,188.57
AC*	1.66%	-2.37%	-2.07%	4.08%	3.09%	3.64%	4.49%	5.93%	5.77%	11.59%

*AC = Average rate of change of patient numbers from 2010 to 2017 of study period