AutoIt - 60 58 56 bytes
$_=@YEAR-2e3
ClipPut(($_-Int($_/4-1))/10+6&' 3'&3*$_-20)
The rounding eats bytes (not anymore). I have now tweaked both formulas. Some sample outputs:
7.3 325 // 2015
7.3 328
7.4 331
7.5 334 // 2018
8.4 370 // 2030
They all seem to be accurate.