For me it varies from as little as .23c per thousand views (often), to as much as $4 per thousand views (only happened once).
I was bored and needed something to do, so for a hobby to pass the time, I started filming my daily walks with my dog on my phone, and just chattered about whatever popped into my head. I uploaded them to YouTube not realizing you could make money off them, until I found the section to link an adsence account and linked it up, not expecting to see anything from it. Money started showing up on my dashboard the very first day. It was only .02c but it was like: "OMG! I made 2 pennys! Yay!"
I started uploading videos in March 2016 and gained 35 subs and earned $3 after 30 days of uploading 1 dog walk vlog video (40 minutes each) a day. From April to August I averaged $3 a month income. By August I had 300 subs.
Because I'm a gamer, I started adding a few random game play videos here and there to test out what it was like to play games live.
In September I changed stuff around, because my boyfriend (a photographer) bought me a professional grade camera, and built me an office for my birthday (in August). He also got me a video editing software. So after September, in addition to the vlogs, I started recording my at work (I'm an author) and next thin I knew I was doing BookTube readings and AuthorTube how-tos for writers.
In September I was doing 2 to 3 videos uploaded a day (1 vlog + 1 BookTube or AuthorTube and sometimes also a gameplay). They were now far better filming quality and receiving much better editing. It was at this point that I saw a dramatic change in subs, views, and income.
It took me from March to August to reach 300 subs and averaging about 30 views a day across all videos total and still averaging $3 a month income.
By the end of September I had 450 subs, my first time gaining 100 subs in a single month and was suddenly seeing 100+ views a day. My income jumped to $5+ that month.
Right now, 2 months later, I'm at 907 subs... gaining more subs in the past 2 weeks, then I had gained total during the 6 months previous. My income is just now reaching the $10 a month bracket. I just crossed 153,000 views this week.
Interestingly, while I'm currently averaging 350 views a day across all videos, about 120 views a day are all on 1 single video, with the rest getting only 3 or 4 views a day. I have a video with 67k views, two with 16k views, one with 8k views, about a dozen with 1k views each, and most of the rest of my 412 videos have fewer then 30 views each video total.
If I was earning the fabled $1 per 1,000 views, I would have crossed $150 income by now, however, I have instead, just cross $65 - less then half the $1 per 1,000 views myth.
If it continues to increase at the rate it is right now, however, I should reach $100 earned by February 2017, and so receive my first payday hopefully in March 2017. Meaning it took about 12 months to earn my first $100
I'm not sure how this compares to others' growth rates, so not sure if this info will actually help you out or not. It seems to vary greatly from one channel to the next depending on the type of content they make and the type of marketing they do.
I've seen others who started their channels same time I did, who are struggling to get to their first 100 subs still, and I know of one guy who started same time as me, who just this week crossed 92,000 subs. I'm not sure what the differance is, why some zip to the top fast, others stay stuck at low numbers, and then the ones like me, just have a slow but steady increase over time. Anyways, hope that helps you out.