Mathematics · Data Interpretation

The following table shows the number of candidates from different locations who appeared (App.) and passed in a competitive examination over the years: Year Rural Semi-urban State capitals Metropolises App. Passed App. Passed App. Passed App. Passed 1990 1652 208 7894 2513 5054 1468 9538 3214 1991 1839 317 8562 2933 7164 3248 10158 4018 1992 2153 932 8139 2468 8258 3159 9695 3038 1993 5032 1798 9432 3528 8529 3628 11247 5158 1994 4915 1658 9784 4015 9215 4311 12518 6328 1995 5628 2392 9969 4263 1725 4526 13624 6419 What was the approximate percentage drop in the number of semi-urban candidates who appeared from 1991 to 1992?