Jo In Sung's height became shorter in high school?

A TV segment recently explored celebrities during their school days and recently chose to delve into the past of actor Jo In Sung. The show revealed his high school graduation picture as well as his records, which became an interesting and amusing topic for his fans. Although most people tend to go through a growth spurt during adolescence, Jo In Sung appears to have suddenly gotten shorter in his third year of high school! In his first year, his profile was listed at approximately 185cm 6'1". The next year, he grew a bit to become 185.5cm 6'1.5". However, in his third year, his listed height was puzzlingly reversed to 179cm 5'10". Netizens are pondering how he actually became shorter after one year? The reason that they came up with is that most likely, there must have been some error in the calculation of his height or a misprint for the final figure. Regardless, people showed amusement at this strange revelation and said, "This is really interesting. He shrunk in height," "Might it be a typo for 189 cm (6 feet 2 inches)?" "What happened during his third year?" and, "I want to know the truth to this." Source & Photo: Naver