NEW YORK — Broadway box office remained steady in Week 2 in the run-up to the Tony Awards, with total cume climbing slightly to $19.7 million for 32 shows on the boards.Several shows saw B.O. rise, including “Joe Turner’s Come and Gone” ($375,803), up a whopping 33% in wake of the recent publicity-generating visit from Barack and Michelle Obama. Meanwhile, “God of Carnage” ($928,926), which was already a hit and is now a Tony winner, continued to post figures more common to tuners than to straight plays, with the show staking out a berth in the No. 6 spot in the top 10. Among the shows slipping slightly were struggling straight plays “Irena’s Vow” ($174,388) and “Reasons to Be Pretty” ($160,865), which closed June 14. The 20 musicals grossed $15,194,301 for 77% of the Broadway total, with an attendance of 176,099 at 84.1% capacity and average paid admission of $86.28. The 11 plays grossed $4,527,890 for 23% of the Broadway total, with an attendance of 71,123 at 71.9% capacity and average paid admission of $63.66. Average paid admission was $79.78 for all shows.