According to a new study from Consumer Intelligence Research Partners (CIRP), Apple’s 2017 iPhone lineup (iPhone 8, iPhone 8 Plus and iPhone X) accounted for over 60 percent of iPhone sales last quarter (October 2017 to December 2017).

The same data suggests Apple’s iPhone 7 and iPhone 7 Plus snagged about a quarter of iPhone sales despite being a year old.

The data is noteworthy because Apple’s iPhone 7 and iPhone 7 Plus accounted for a 72 percent share of iPhone sales during the same quarter a year ago. So, according to the data, interest in Apple’s newest iPhone models fell slightly compared to Q4 2016.

Which is a little surprising considering what Apple released last year. The iPhone 8 and iPhone 8 Plus both included wireless charging, better display technology, and improved cameras. Meanwhile, the iPhone X introduced an edge-to-edge OLED display and Face ID.

That being said, CIRP’s data suggests the iPhone X made up about 20 percent of total iPhone sales in December, despite the device’s higher cost. The higher number of sales could correlate with when the device was easier to find. When the iPhone X launched, it supply did not meet demand.

CIRP’s data doesn’t provide an exact breakdown for how many of each device was sold. For that, we’ll have to wait for Apple to reveal its fiscal Q1 earnings on February 1.