How much is the mosquito tree in 100?

There can't be a mosquito tree 100 years old, because it is actually a kind of Lagerstroemia indica. The price is:

Lagerstroemia indica with a diameter of 2 cm Price: 15 yuan

Ziwei with a diameter of 3 cm Price: 25 yuan

Lagerstroemia indica with a diameter of 4 cm Price: 55 yuan

The price of Lagerstroemia indica with a diameter of 5 cm: 100 yuan.

Lagerstroemia indica with a diameter of 6 cm Price: 200 yuan

7 cm diameter Lagerstroemia indica Price: 480 yuan

Ground diameter 8 cm Lagerstroemia indica Price: 750 yuan

Lagerstroemia indica with a diameter of 9 cm Price: 1200 yuan

Diameter10cm Lagerstroemia indica Price: 1700 yuan