. 2018 Aug 23;15:E105. doi: 10.5888/pcd15.170576

Table 2. Number of Unit Sales^a of Flavored and Menthol E-Cigarettes and Annual Monthly Percentage Change (AMPC)^b in Unit Sales, United States, 2012–2016^c .

Product	Measure	2012	2013	2014	2015	2016	2012–2016
All e-cigarettes	Total no. of units^a	27.0	64.1	65.3	59.4	64.4	280.2
	Flavored, %^d	2.4	4.8	8.9	15.1	19.8	10.2
	AMPC^b for flavored units	7.9^e	3.8^e	6.9^e	1.9^e	1.9^e	4.4^e
	Menthol, %^d	39.9	37.2	36.3	35.2	36.6	37.0
	AMPC^b for menthol units	−0.6	−0.2^e	−0.2^e	−0.2^e	0.7^e	−0.1
Rechargeables	Total no. of units^a	4.1	4.0	7.9	7.8	10.7	34.5
	Flavored, %^d	0	0	0	0	0	0
	AMPC^b for flavored units	NA	NA	NA	NA	NA	NA
	Menthol, %^d	37.9	47.7	53.5	40.9	43.2	44.6
	AMPC^b for menthol units	−0.6	4.6^e	−2.2^e	−1.1^e	1.2^e	0.3
Disposables	Total no. of units^a	14.2	47.3	36.6	21.1	18.6	137.8
	Flavored, %^d	1.0	2.7	10.3	21.0	28.3	12.6
	AMPC^b for flavored units	43.3^e	6.2	14.3^e	1.8^e	1.8^e	11.7^e
	Menthol, %^d	36.4	35.6	31.7	28.0	27.7	31.9
	AMPC^b for menthol units	−0.3^e	−0.3^e	−1.6^e	0.2	−0.5^e	−0.5^e
Prefilled cartridges	Total no. of units^a	8.7	12.8	18.9	26.4	31.9	98.7
	Flavored, %^d	5.6	13.8	8.7	7.8	17.6	10.7
	AMPC^b for flavored units	8.5^e	1.9^e	−8.2^e	11.6^e	0.7	2.6^e
	Menthol, %^d	46.1	40.0	39.8	41.5	41.1	41.7
	AMPC^b for menthol units	−0.5^e	−0.8^e	0.7^e	0	0	−0.2^e
E-liquids	Total no. of units^a	0	0.03	1.9	4.1	3.2	9.3
	Flavored, %^d	0	33.4	55.2	59.1	56.9	52.2
	AMPC^b for flavored units	NA	11.0	−0.1	−0.1	−0.1	1.9
	Menthol, %^e ^, ^f	0	47.8	18.0	20.4	19.8	25.2
	AMPC^b for menthol units	NA	−14.1^e	3.6^e	0	0	−1.7^e
Combustible cigarettes	Total no. of units^a	11,596.8	11,350.5	11,067.0	11,021.7	10,717.5	55,753.5
	Menthol, %	31.1	31.8	32.4	32.7	33.3	32.3
	AMPC^b for menthol units	0	0.3^e	0.1^e	0.1^e	0.1	0.1^e

Units are reported in millions.

AMPC is the relative change within each 4-week period.

Data source: The Nielsen Company. Data span January 15, 2012, through January 7, 2017. Sales represent combined sales from convenience stores and all other outlets combined. Excludes Alaska and Hawaii.

Percentage was calculated as the number of sales units of flavored products (or menthol products) divided by the total number of sales units in the product category. For example, of the total number of sales units for all e-cigarettes in 2012, 2.4% were flavored and 39.9% were menthol. The remaining proportion in each product category is nonflavored, nonmenthol tobacco (ie, regular tobacco).

AMPC was significantly different from zero (P < .05).

2013 sales of flavored and menthol liquid e-cigarettes began on April 7.

Table 2. Number of Unit Salesa of Flavored and Menthol E-Cigarettes and Annual Monthly Percentage Change (AMPC)b in Unit Sales, United States, 2012–2016c .

Table 2. Number of Unit Sales^a of Flavored and Menthol E-Cigarettes and Annual Monthly Percentage Change (AMPC)^b in Unit Sales, United States, 2012–2016^c .