Comprehension:

Odsville has five firms – Alfloo, Bzygoo, Czechy, Drjbna and Elavalaki. Each of these firms was founded in some year and also closed down a few years later.

Each firm raised Rs. 1 crore in its first and last year of existence. The amount each firm raised every year increased until it reached a maximum, and then decreased until the firm closed down. No firm raised the same amount of money in two consecutive years. Each annual increase and decrease was either by Rs. 1 crore or by Rs. 2 crores.

The table below provides partial information about the five firms.

Firm	First year of existence	Last year of existence	Total amount raised (Rs. crores)
Alfloo	$2009$	$2016$	$21$
Bzygoo	$2012$	$2015$	—
Czechy	$2013$	—	$9$
Drjbna	$2011$	$2015$	$10$
Elavalaki	$2010$	—	$13$

What best can be concluded about the total amount of money raised in 2015?