everlasting deodorant

A while back--around fifteen months to be exact--Golden bought me a two-pack of deodorant. This isn't ground-shaking news, but I've long believed that my deodorant lasts longer than usual, so I decided to keep track of precisely how long it actually takes me to use up a typical stick of deodorant. The last stick I used lasted from mid-October, 2016, to this past Sunday (January 14, 2018).  I thought it took a year-and-a-half for me to get through a stick, but fifteen months is still pretty close.

I started to think that maybe everyone's deodorant habits are like mine.  However, a quick online search returned people in forums stating their stick would last anywhere from one to six months.  That immediately makes me second-guess whether I'm a walking case of B.O., but I really don't think I am.

I think the reason I use less is the same reason I don't wear cologne.  I find the scent overpowering, so I am sparing in my deodorant use.  My sense of smell is a bit more sensitive than average, so I consciously try to avoid adding too much strong scent to my person.

I'd ask how long everyone else's deodorant lasts, but that might be too personal of a question.  So, I'll ask a related question instead.  Does fifteen months for a stick of deodorant seem excessive, or about right?