For the past two years, Value Mobile has been working to improve the quality of its phones. Data for 2016 and 2017 follows (in thousands of phones):

	2016	2017
Cell phones produced and shipped	3819	16920
Number of defective units shipped	142	498
Number of customer complaints	234	383
Units reworked before shipping	185	867
Manufacturing cycle time (days)	17	19
Average customer response time (days)	33	31

Calculations based on above data:	2016	2017
1. Percentage of Defective Units Shipped	3.7%	2.9%
2. Customer complaints as a % of units shipped	6.1%	2.3%
3. Percentage of units reworked during production	4.8%	5.1%
4. Manufacturing cycle time as a percentage of total time from order to delivery	51.5%	61.3%

Question:

Referring to the information computed above, explain whether Value Mobile's quality and timeliness have improved. Be specific.