Following graph shows the number of International Tourist Arrival to India (figures in thousands) from 1999 to 2004. Answer the following questions using the information provided. 

International Tourist Arrivals (‘000 s)
Source	1999	2000	2001	2002	2003	2004
Africa	26	27	28	29	31	33
America	122	128	120	115	113	126
Asia Pacific	103	115	121	131	120	153
Europe	381	393	391	400	396	415
Middle East	21	24	24	28	30	36

In which year has the increase in the total number of international tourist arrivals from all the above sources been the lowest?