Ambrish Srivastava, BMO Capital Markets
Okay thanks for that clarification Kevin. This what I meant because we always get into this debate in cycles about sell-in and sell-through. My quick question is, what should we be modelling for CapEx for this year? Thank you.
Kevin March, SVP & Chief Financial Officer
Yes I would continue to recommend that we will average about 4% of our revenues on CapEx, on an average over a multi-year period. Some years might be a little later like it was this past year, were we came in at about 3% in 2014. But on the average, we expect 4% and that is how we built our own internal models.
Dave Pahl VP, Head of Investor Relations
Great. Thanks Ambrish, we will go to the next caller please.
Operator
Next question is from John Pitzer, Credit Suisse
John Pitzer, Credit Suisse
Yes good afternoon guys. Congratulations on the good results. Kevin, 90 days ago when you were talking about OpEx for the December quarter, you said that looking back a year ago and how it flowed a year ago was probably a good model. And you even mentioned that it’d probably a good model going into the calendar first quarter. Is that statement still hold? Can you help us understand the puts and take on OpEx going into the March quarter especially around some seasonal costs?
Kevin March, SVP & Chief Financial Officer
Yes, John, you are exactly right. So going from fourth quarter to the first quarter, the best way to model that is to take a look — really last year is a good starting point. We typically are up in the mid single-digits from fourth to first on OpEx and that is because of the absence of the holiday periods that we have on fourth quarter and the annual start-up of fund benefit increase that we have in the first quarter. This year we might be up just a little more than that versus a year ago simply because on higher profitability that we are expecting for the year, we also expect higher variable compensation accruals. And so that may take our first up a little bit higher that what you saw about a year ago.
Dave Pahl VP, Head of Investor Relations
Do you have a follow on John?
John Pitzer, Credit Suisse
Yes I did. Just going back to the analog space, maybe you can give us a little bit more color because it is pretty impressive. You guys put up a double-digit growth year-over-year this quarter against pretty hard compares from the year ago quarter. So I am just kind of curious, to what extent do you think your market share gains could be accelerating around your consignment efforts. If you could just help me understand a little bit better. I know you talked about power kind of leading the way this quarter. Can you help me understand a little bit more why the growth seems to be doing much better than some of your peers?
Kevin March, SVP & Chief Financial Officer
Well yes, I think when you look year-over-year, first of all, it is good to have all four of those businesses contributing to the growth. Certainly power is benefiting from just the secular trend of things wanting run more off of batteries, and things that do get plugged in becoming more efficient. We also have a very strong product line in there too. So I think that those things are helping us to gain share. And we talked about for some time that it is not one thing inside of a business like analog or embedded processing that allows you to gain share. There is a lot of things that you have to do to be a good analog company. We have got a lot of competitors that fit that category, but we have got other things like the scale and reach of our sales force, our presence on the web, our manufacturing footprint, the technology that we bring to bear and the breadth of the product portfolio. So I think it is just all those things kind of working together.
