Is vaping reducing smoking? It’s hazy.

Vaping sales have skyrocketed over the past year, while smoking rates have dropped to their lowest numbers ever. But vaping is not necessarily pulling people away from conventional smoking, according to experts and new data analysis.

E-cigarette sales jumped 97 percent over the past year, per a June Wells Fargo Securities LLC research note, with sales only expected to grow.

Meanwhile, traditional cigarette sales were flat over the same period. And a June report from the Centers for Disease Control and Prevention showed there are fewer smokers than ever before, with 14 percent of the country smoking.

But it’s unclear whether vaping’s popularity is contributing to smoking’s demise. A growing body of science is researching that relationship, said Brian King, the deputy director for research translation at the CDC’s Office on Smoking and Health.

“The situation is far more complicated than noting that one thing is going up and one thing is going down,” King said in an interview last month.

Joanna Piacenza/Morning Consult