Rock Health, a venture fund dedicated to digital health, reported that venture capital funding for U.S. digital health companies hit an all-time high of $14.1 billion in 2020, a 72 percent increase from the previous high water mark set in 2018.

In a post on its website. Rock Health noted that $5.9B was raised in the first half of 2020, with the second half delivering the most funding in a half-year ever with $8.2 billion. Investors closed more deals than ever before, with 440 deals in 2020 compared to 378 in 2019 and 383 in 2018—15 percent growth in investment activity over the past 36 months.

“In addition to closing more deals, digital health companies also raised more per deal. Over the past 36 months, average deal size increased from $21.5 million in 2018 to $31.9 million in 2020. Average deal size was largely bolstered by 40 mega deals, rounds of $100 million or more, which accounted for more than half (57 percent) of total 2020 funding,” Rock Health said.

The company also pointed out that 2020 also represented a thematic shift in liquidity for digital health venture investors, with upswings in both IPO and M&A activity.

Click here to read Rock Health’s full assessment of the current state of digital health funding in the U.S.