Table:
text: Tuva
Vital statistics
Vital statistics
Average_population_x_1000 Live_births Deaths Natural_change Crude_birth_rate_per_1000 Crude_death_rate_per_1000 Natural_change_per_1000
233 6559 1938 4621 28.2 8.3 19.8
253 6950 2306 4644 27.5 9.1 18.4
272 7133 2748 4385 26.2 10.1 16.1
287 8110 2624 5486 28.3 9.1 19.1
309 8116 2664 5452 26.3 8.6 17.7
304 7271 2873 4398 23.9 9.5 14.5
303 6545 3006 3539 21.6 9.9 11.7
302 6130 3480 2650 20.3 11.5 8.8
303 6076 4086 1990 20.1 13.5 6.6
304 6172 4010 2162 20.3 13.2 7.1
305 5705 4110 1595 18.7 13.5 5.2
305 4908 3954 954 16.1 12.9 3.1
306 5267 3631 1636 17.2 11.9 5.4
306 4894 4142 752 16.0 13.5 2.5

Question: Calculate Tuva's average natural change (per 1000) when the crude death rate (per 1000) is greater than 13.2, when deaths are 4,142 and when natural change is less than 752?

Question: What is the lowest natural change among Tuva if the natural change (per 1000) is 19.1 and the crude birth rate (per 1000) is less than 28.3?