Table 2. Comparison of the number of stations in the CenTrends and GHCN monthly and daily data sets.

	1900–1920	1921–1940	1941–1960	1961–1980	1981–1999	2000–2014
The first value in each cell indicates the average number of CenTrends observations. The second value shows the number of GHCN monthly observations. The third row shows counts for the GPCC v6 data set. The GPCC results for the first and last columns use 1901–1920 and 2000–2010 as start and end years.
Tanzania CenTrend	13	76	125	209	162	64
GHCN	7	47	63	111	53	4
GPCC	7	47	62	94	55	11
Kenya CenTrend	26	43	62	146	127	62
GHCN	11	19	24	85	43	3
GPCC	15	24	38	73	56	16
Ethiopia CenTrend	4	6	9	112	176	164
GHCN	4	6	9	63	41	4
GPCC	5	9	13	61	72	35
Uganda CenTrend	13	22	55	67	42	8
GHCN	8	13	49	50	17	0
GPCC	8	16	34	35	19	13
Rwanda CenTrend	1	16	29	56	51	5
GHCN	0	1	2	1	1	0
GPCC	1	4	6	7	5	0
Burundi CenTrend	0	7	10	18	23	3
GHCN	0	1	2	1	2	0
GPCC	0	2	3	3	3	0
Eritrea CenTrend	2	4	8	6	2	0
GHCN	2	4	8	6	2	0
GPCC	2	5	8	5	5	1
Somalia CenTrend	4	25	21	20	10	0
GCHN	2	19	16	14	6	0
GPCC	2	18	17	14	19	0
Total CenTrend	63	199	319	634	593	306
GHCN	34	110	173	331	165	11
GPCC	40	125	180	291	223	77