Mark Ronson’s “Uptown Funk!,” featuring Bruno Mars, tops the Billboard Hot 100 for a ninth week, while Pitbull and Ne-Yo’s “Time of Our Lives” reaches the top 10, jumping 11-10. As we do each Wednesday, let’s run down the key numbers in the top 10 on the sales/airplay/streaming-based Hot 100. “Funk!,” released on RCA Records, logs a ninth week atop the Digital Songs chart with 240,000 downloads sold (down 7 percent) in the week ending March 1, according to Nielsen Music. It leads Streaming Songs (18.8 million U.S. streams, down 5 percent) and the subscription services-based On-Demand Songs (5.2 million, down 3 percent) for a seventh week each. On Radio Songs, “Funk” reigns for a fifth week with a 2 percent lift to 189.8 million in all-format audience.