I love this topic. Depends on my mood but I can induce one every night if i were to choose to. Lately its been once or twice a week. My dreams are mainly revolving around my own personal fears, desires, opinions, views, dreams, etc. Last one I had involved me being in some unknown area and everything was grey and all of the faces were distorted and unrecognizable. I knew they had faces and I could distinguish differences in voices (male from female and also age). Pretty sure it was my mind's interpretation of my past personal experiences and memories as a child.
Also to note, I haven't experienced a normal dream for many months, maybe even over a year. All of my lucid dreams are self-induced before falling asleep, essentially my body is asleep and my mind is still functioning so there is a very short lapse in between actually dreaming while unconscious and dreaming while conscious. So basically I never dream unless I force myself to. But I sometimes have trouble differentiating between what is truly going on in my head before the unconscious dream state and when I am actually in that state. But i remember the dreams in their entirety for a few days usually and can actually re-enter the same dream over the next night or two if i choose to. I believe the longest i prolonged a single dream was two weeks when I re-entered the same dream 5 times plus the initial time and it carried through that time. I can also realize I am inside of a dream and leave it to go into another new and unrelated dream or i will wake myself up. Its similar to the movie Inception in a sense of by paying to the smallest details you can find flaws that expose the reality that you are dreaming.
I am pretty certain over the past 4 years or so that I have dreamed unintentionally maybe twice. Now i know people say you don't remember most of your dreams but as a child and early adolescent I would have 2-3 dreams a night every night for years. Sometime around 7 years ago i stopped dreaming over the course of two or three night without any reason as to why and since then that's been the case with the exception of maybe <10 unintended dreams over those 7 years.