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Daily Mean Sunspot Numbers for July 1999

DayMn. Raw Ras.d.       Mn. Rak  s.d.
1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31
174

167

153

141

160

188

194

223

237

270

258

240

236

212

193

231

262

283

315

308

285

288

243

214

203

161

160

140

136

136

118
5.5

5.5

5.6

5.4

5.5

9.2

8.4

8.1

10.6

11.8

9.4

8.3

8.4

10.2

10.0

9.6

9.2

11.2

11.6

11.5

12.6

10.0

10.4

8.5

7.5

5.5

5.9

5.4

4.6

5.5

3.9
 

145

146

124

113

128

153

166

181

203

221

205

199

199

178

159

186

218

236

259

258

243

234

207

183

172

139

132

115

113

110

98

3.1

2.9

4.0

3.3

3.8

6.1

5.4

6.1

5.4

8.1

6.5

6.1

6.7

8.1

8.7

5.4

6.6

5.0

7.5

6.9

8.5

6.4

6.2

5.3

4.3

3.6

3.3

4.1

2.9

4.3

2.7
Means:210.6  175.0 
No. of Observations: 1153
No. of Observers: 66

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