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. 2020 Nov 25;17:E148. doi: 10.5888/pcd17.200205
Year Type Markedly Low, % Low, % Moderate, % High, %
2016 Overall 8.2 27.4 10.2 54.2
Menthol 5.7 16.0 3.3 75.0
Nonmenthol 9.2 32.0 13.0 45.8
2015 Overall 8.6 33.6 36.5 21.3
Menthol 6.4 20.8 43.9 28.9
Nonmenthol 9.5 38.6 33.6 18.3
2014 Overall 8.7 30.4 9.3 51.6
Menthol 6.9 17.1 3 72.9
Nonmenthol 9.4 35.5 11.7 43.4
2013 Overall 9.1 31.5 20.1 39.3
Menthol 7.3 19.3 25.6 47.9
Nonmenthol 9.7 36.0 18.1 36.2