With very little discussion, the University of Connecticut trustees voted unanimously Monday for a four-year schedule of tuition increases, starting with 6 percent next year and climbing steadily to 6.8 percent in 2016. For in-state undergraduates that will mean their tuition and fees will climb to $11,290 next fall — $620 more than this year's charge of $10,670. By 2016, the charge will be $2,676 more than this year, or $13,346.