I’m developing a theory that the Hot 100 over the last two decades has been a lot more stagnant than in previous years. In other words, fewer songs are spending a longer amount of time in the upper echelons of the chart.

I’m basing this admittedly half-baked idea on the fact that the 2013 edition of Throwback Thursdays has produced the most repeats by far. Just take a look at the chart on the week of July 27, 2013.

In the #1 and #2 spots are ‘Blurred Lines’ and ‘Get Lucky,’ the same two songs in those slots when I wrote about 2013 three weeks ago. Next up is Miley Cyrus’ ‘We Can’t Stop,’ which, to be fair, would be today’s featured song had I not written about it in 2014.

Then comes a trio of hits I have written about recently as part of Throwback Weekends: Imagine Dragons’ ‘Radioactive,’ Macklemore & Ryan Lewis’ ‘Can’t Hold Us,’ and ‘Cruise‘ by Florida Georgia Line featuring Nelly.

That’s five repeats among the top six songs over the course of two months. Maybe it was just a quirk of the summer of 2013, but my hunch is I’d see more of the same in the years since.

At any rate, that brings us to the #7 song that week, Bruno Mars’ ‘Treasure.’ This was the third single from Mars’ sophomore album Unorthodox Jukebox (following ‘Locked Out of Heaven’ and ‘When I Was Your Man’) and the first to not reach #1 (it peaked at #5).

French house musician Breakbot accused Mars of stealing his song ‘Baby I’m Yours,’ a claim bolstered by the fact that Mars had allegedly asked to cover that song a year before releasing this one. The songwriters of ‘Baby I’m Yours’ were given writing credit on ‘Treasure,’ a lucrative result for an act that has never had a song chart outside of France.