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:
| District | 2010 Population (000) | 2008 GDP (USD bn) a | 2008 GDP per capita (USD) a | Agri culture b | Mining b | Manufac turing b | Services & cons truction b | Exports (USD mn) 2011 | Median mo. salary (USD) a e | Vehicles (per 1000) d | Income poverty f | Structural poverty g |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| City of Buenos Aires | 2890.0 | 118.000 | 40828.0 | 0.3 | 1.0 | 12.9 | 85.8 | 426.0 | 1618.0 | 528.0 | 7.3 | 7.8 |
| Buenos Aires Province | 15625.0 | 161.000 | 10303.0 | 4.5 | 0.1 | 21.3 | 74.1 | 28134.0 | 1364.0 | 266.0 | 16.2 | 15.8 |
| Catamarca | 368.0 | 2.331 | 6009.0 | 3.6 | 20.8 | 12.1 | 63.5 | 1596.0 | 1241.0 | 162.0 | 24.3 | 21.5 |
| Chaco | 1055.0 | 2.120 | 2015.0 | 12.6 | 0.0 | 7.5 | 79.9 | 602.0 | 1061.0 | 137.0 | 35.4 | 33.0 |
| Chubut | 509.0 | 7.110 | 15422.0 | 6.9 | 21.3 | 10.0 | 61.8 | 3148.0 | 2281.0 | 400.0 | 4.6 | 15.5 |
| Córdoba | 3309.0 | 33.239 | 10050.0 | 10.6 | 0.2 | 14.0 | 75.2 | 10635.0 | 1200.0 | 328.0 | 14.8 | 13.0 |
| Corrientes | 993.0 | 4.053 | 4001.0 | 12.6 | 0.0 | 8.2 | 79.2 | 230.0 | 1019.0 | 168.0 | 31.5 | 28.5 |
| Entre Ríos | 1236.0 | 7.137 | 5682.0 | 11.9 | 0.3 | 11.6 | 76.2 | 1908.0 | 1063.0 | 280.0 | 13.0 | 17.6 |
| Formosa | 530.0 | 1.555 | 2879.0 | 7.6 | 1.5 | 6.4 | 84.5 | 40.0 | 1007.0 | 107.0 | 30.7 | 33.6 |
| Jujuy | 673.0 | 2.553 | 3755.0 | 5.5 | 0.7 | 14.6 | 79.2 | 456.0 | 1123.0 | 153.0 | 30.0 | 28.8 |
| La Pampa | 319.0 | 2.000 | 5987.0 | 19.0 | 3.7 | 5.3 | 72.0 | 378.0 | 1164.0 | 364.0 | 13.6 | 10.3 |
| La Rioja | 334.0 | 1.419 | 4162.0 | 3.9 | 0.1 | 16.8 | 79.2 | 281.0 | 1040.0 | 172.0 | 22.0 | 20.4 |
| Mendoza | 1739.0 | 18.800 | 10758.0 | 5.4 | 6.1 | 17.5 | 71.0 | 1862.0 | 1153.0 | 313.0 | 12.2 | 15.4 |
| Misiones | 1102.0 | 4.044 | 3751.0 | 6.7 | 0.0 | 13.0 | 80.3 | 536.0 | 971.0 | 153.0 | 32.6 | 27.1 |
| Neuquén | 551.0 | 14.398 | 26273.0 | 0.7 | 42.8 | 2.9 | 53.6 | 353.0 | 2211.0 | 339.0 | 11.2 | 17.0 |
| Río Negro | 639.0 | 4.924 | 8247.0 | 4.9 | 8.4 | 7.3 | 79.4 | 670.0 | 1309.0 | 285.0 | 20.6 | 17.9 |
| Salta | 1214.0 | 5.165 | 4220.0 | 8.1 | 7.6 | 10.4 | 73.9 | 1332.0 | 1045.0 | 139.0 | 29.7 | 31.6 |
| San Juan | 681.0 | 3.927 | 5642.0 | 8.1 | 0.3 | 15.9 | 75.7 | 2470.0 | 1293.0 | 216.0 | 18.4 | 17.4 |
| San Luis | 432.0 | 2.444 | 5580.0 | 4.9 | 0.5 | 42.4 | 52.2 | 735.0 | 1288.0 | 245.0 | 22.0 | 15.6 |
| Santa Cruz | 274.0 | 6.892 | 30496.0 | 4.4 | 47.1 | 2.3 | 46.2 | 1857.0 | 2646.0 | 432.0 | 3.6 | 10.4 |
| Santa Fe | 3195.0 | 37.500 | 10670.0 | 10.1 | 0.0 | 17.4 | 72.5 | 17804.0 | 1265.0 | 299.0 | 18.2 | 14.8 |
| Santiago del Estero | 874.0 | 2.598 | 3003.0 | 11.5 | 0.1 | 6.2 | 82.2 | 1082.0 | 945.0 | 103.0 | 31.0 | 31.3 |
| Tierra del Fuego | 127.0 | 2.606 | 20682.0 | 4.7 | 18.5 | 18.6 | 58.2 | 443.0 | 2267.0 | 478.0 | 6.4 | 14.1 |
| Tucumán | 1448.0 | 5.807 | 3937.0 | 6.0 | 0.1 | 12.6 | 81.3 | 1031.0 | 973.0 | 146.0 | 27.7 | 23.9 |
Question:
How low was the San Juan income?
Answer:
18.4