Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Period | Births | Deaths | Difference | Crude Birth Rate | Crude Death Rate | Natural Increase | Total Fertility Rate | Infant Mortality Rate |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1950 - 1955 | 230 000 | 114 000 | 116 000 | 238.0 | 118.0 | 120.0 | 270.0 | 905.0 |
| 1955 - 1960 | 372 000 | 109 000 | 263 000 | 362.0 | 106.0 | 256.0 | 380.0 | 759.0 |
| 1960 - 1965 | 381 000 | 106 000 | 275 000 | 328.0 | 91.0 | 237.0 | 341.0 | 669.0 |
| 1965 - 1970 | 490 000 | 105 000 | 385 000 | 369.0 | 79.0 | 290.0 | 409.0 | 563.0 |
| 1970 - 1975 | 458 000 | 92 000 | 365 000 | 302.0 | 61.0 | 241.0 | 372.0 | 441.0 |
| 1975 - 1980 | 317 000 | 83 000 | 233 000 | 190.0 | 50.0 | 140.0 | 258.0 | 352.0 |
| 1980 - 1985 | 388 000 | 92 000 | 296 000 | 216.0 | 51.0 | 165.0 | 293.0 | 299.0 |
| 1985 - 1990 | 389 000 | 105 000 | 284 000 | 200.0 | 54.0 | 146.0 | 245.0 | 261.0 |
| 1990 - 1995 | 450 000 | 124 000 | 326 000 | 215.0 | 59.0 | 155.0 | 240.0 | 243.0 |
| 1995 - 2000 | 443 000 | 219 000 | 225 000 | 198.0 | 98.0 | 101.0 | 220.0 | 549.0 |
| 2000 - 2005 | 379 000 | 209 000 | 170 000 | 163.0 | 90.0 | 73.0 | 205.0 | 285.0 |
Question:
period between 1985 - 1990 have minimum infant mortality rate of what.
Answer:
261.0