The year 2015 turned into a takeover frenzy marked by record low interest rates and a desire to get big fast. No sector was hotter than health care, which saw unprecedented activity in mergers and acquisitions. Here's some numbers to put 2015 into perspective.
— $1.99 trillion: The value of all mergers and acquisitions completed or pending so far this year across all sectors in the U.S.
— 1 in 5: The ratio of total dollars spent on health care companies.
— 245 percent: That's how much the combined value of all health care deals increased compared with just five years ago, well over three times the total value.
— 277: That's how many more M&A deals were pursued five years ago, showing how massive health care deals have become.
— $451 billion: The total value of M&A in health care, which was greater than all M&A activity in the telecom and energy sectors combined.