A line graph captioned 'Nucleic acid patents' shows the rise in the number of nucleic-acid patents between 1986 and 2004. x-axis represents the 'Year' from 1986 to 2004 at an increment of 3 years and y-axis represents the 'Patent Share' from minimum zero to thirty at an increment of ten. It reflects:

1. The patent share was around one in 1986.
2. Patent share started to rise since then and was at its maximum of almost thirty in 1998.
3. After 1998 it started to come down from its maximum and in 2005, it was at twenty-five.