Yes, good question, John. Thanks. I think -- let me start with the last part of the question first about sustainable growth rates. If you look back over the last 5 years of our business, we've had a growth rate in 2017 that was well beyond 20% in the industrial sector. But actually, when you aggregate over 5 years, the growth rate was around 5%. And I think that is a sustainable number and the way to think about the long-term growth trajectory for the industrial business. So then looking into '18, how do we view things? Well, I think, for sure, the strong GDP environment bodes well for the industrial business, number one. I think also we're seeing good growth drivers. I've had the benefit of speaking to many executives of many of our industrial customers over the last several months, the last few quarters, and what I can tell you is that the activity in building out the industrial IoT, I talked in the prepared remarks about the brownfield upgrade in America, for example, the greenfield build-outs in China, all these things, I think, are good secular growth drivers that have many, many years of legs to them, particularly, I would say, in China. And added to that, John, we're seeing, for example, the emergence of these rechargeable batteries everywhere, in cars, obviously everybody knows about smartphones and so on and so forth. But the formation and test of those battery systems is quite a great performance challenge and an area where we see a lot of opportunity to bring precision technologies to market. So I think you've got to be skeptical to some extent. I think there are -- it's -- are those growth rates sustainable? Yes. I think on a 5% level, they are. But my sense is heading into '18, we should be able to hold the gains. I guess the only cautionary tale, if is there is one in the industrial market, is the world of ATE. But again, there, what we're seeing is the -- for example, the shift from hard disk drive to solid-state memories, the building out of these giga memory factories and giga factories in general to support consumer goods. So I think when you put everything together across instrumentation, aerospace and defense, factory automation and instrumentation in general, I think we're in for a good cycle right now.