Small-cell (SCLC) is definitely very aggressive and more strongly associated with smoking than non-small cell lung cancer (NSCLC), I'm not sure about 99% but that seems too high.
It's fairly rare though, the quoted numbers from SEER are 14% but from a clinical perspective most of us that deal with lung cancer feel that's discordant with our practices and likely an overestimate.
In either case, smoker or non-smoker you're far more likely to develop NSCLC with adenocarcinoma being more common than squamous cell (typically only in smokers for the latter but still less common than adenocarcinoma).
The typical adenocarcinoma most people get has a doubling time of roughly 1-2 years.
