Yearly editionPublished on October 18, 2026

Children's Tamborrada Statistics 2011Children's Tamborrada 2011

Overview · 2011

Participants3,310Drummers and cantineras registered in 2011

Change vs. previous edition-18.07%4,040 → 3,310 participants

Distinct first names61618.68% diversity

Distinct surnames2,50841.91% diversity

Compound names712.15% of participants

The 2011 Tamborrada recorded a clear decline in participation compared with the prior comparable period. Alongside that contraction, the edition included names observed for the first time in the earlier available records, providing a distinct debut signal.

Participation

Participation stood at 3310 in the target year. It decreased versus the prior comparable period, with a change of -18.07%.

Total participants

Drummers and cantineras registered in total.

Participants: 3,310

Participants growth

How much participation grew or shrank, as a percentage, compared with the previous edition.

Growth rate: -18.07%

Names

Jon leads the current given-name ranking, followed by Ane and Leire, with Ander and Mikel also among the five most frequent names. Naming renewal is visible among the debuting names, where Oihan ranks first, ahead of Unax. Arantza, Yerai, and Aner also appear among the names observed for the first time.

Rankings5

Most frequent names

The most repeated names and how many times each one appears.

1
Jon
86
2
Ane
77
3
Leire
75
4
Ander
69
5
Mikel
63
6
Asier
60
7
Aitor
59
8
Iker
58
9
Unai
51
10
Maria
49

Participants with multiple names

Participants with more than one given name, and what share they make up.

Participants with multiple names: 71

Share of resolved participants: 2.15%

Average name length

Average number of letters in the registered names.

Average characters: 5.2

Surnames

The current surname ranking is led by Garcia, followed by Fernandez and Gonzalez. Surname renewal is visible in the debut of Alegre, with Aguirrezabal, Gandiaga, Lainez, and Mendoza also appearing among surnames not recorded previously. By contrast, Pena is not recorded now after appearing in the prior observed edition; Larranaga and Munoz are likewise absent from that comparison.

Rankings4

Most frequent surnames

The most repeated surnames and how many times each one appears.

1
Garcia
65
2
Fernandez
60
3
Gonzalez
59
4
Lopez
55
5
Martinez
54
6
Rodriguez
52
7
Garmendia
43
8
Perez
42
9
Ruiz
39
10
Alonso
35

Average surname length

Average number of letters in the registered surnames.

Average characters: 7.07

Diversity

Surname diversity is higher than given-name diversity, with a Shannon entropy of 7.30 compared with 5.45. Surnames are also less concentrated: their top-five share is 4.90%, versus 11.22% for given names, while the Herfindahl indices are 0.0015 and 0.0081, respectively.

Rankings1

Most common name and surname pairs

The name and surname pairs that repeat most among participants, regardless of the rest of the name.

1
Irati Alonso
6
2
Ane Fernandez
4
3
Irati Rodriguez
4
4
Leire Martinez
4
5
Maria Gonzalez
4
6
Aitor Gomez
3
7
Ander Garcia
3
8
Ane Garcia
3
9
Elena Garmendia
3
10
Irati Zabala
3

Names diversity

How much variety there is in names: the more distinct names, the more diversity.

Diversity: 18.68%

Distinct count: 616
Observations: 3,298
Shannon entropy: 5.45

Surnames diversity

How much variety there is in surnames: the more distinct surnames, the more diversity.

Diversity: 41.91%

Distinct count: 2,508
Observations: 5,984
Shannon entropy: 7.3

Name concentration

How concentrated participants are in a few names. The more concentration, the less diversity.

Most frequent: jon

Leader appearances: 86
Leader share: 2.61%
Share of the top positions: 11.22%
Concentration index: 0.0081

Surname concentration

How concentrated participants are in a few surnames. The more concentration, the less diversity.

Most frequent: garcia

Leader appearances: 65
Leader share: 1.09%
Share of the top positions: 4.9%
Concentration index: 0.0015

Schools

Amara Berri Ikastetxea led the school leaderboard, ahead of Santa Maria (Marianistas) and Santo Tomas Lizeoa. The mean school size was 73.56 participants. Amara Berri Ikastetxea also ranked first for both given-name and surname diversity, indicating the broadest recorded name variety within a school.

Rankings4

Schools with the most participants

The schools with the most participants, and how many each one brings.

1
Amara Berri Ikastetxea
187
2
Santa Maria (Marianistas)
148
3
Santo Tomas Lizeoa
128
4
Biteri Zuhaizti
112
5
La Salle
109
6
Santa Teresa
103
7
Aitor Ikastola
99
8
Claret Ikastola (Mariaren Bihotza)
94
9
Ekintza Ikastola
93
10
Zurriola Ikastola
93

Tables2

Most common name by school

The name that appears most in each school, and how many times it appears.

Most common name by school
School	Most common name	Times
Lanceros De La Real Sociedad Hipica	Elena	2
Salesianos Donostia	Julen	5
Karmelo	Maialen	3
Compania de Maria	Marta	3
Santo Tomas Lizeoa	Iker	6
Ikasbide Ikastola	Asier	7
San Jose Ikastetxea	Alejandro	2
La Salle	Unai	6
La Anunciata Ikastetxea	Mikel	4
Sagrado Corazon Mundaiz	Aitor	5

Most common surname by school

The surname that appears most in each school, and how many times it appears.

Most common surname by school
School	Most common surname	Times
Lanceros De La Real Sociedad Hipica	Lopez	3
Salesianos Donostia	Martinez	5
Karmelo	Brillo	2
Compania de Maria	Amilibia	3
Santo Tomas Lizeoa	Garmendia	4
Ikasbide Ikastola	Gargallo	3
San Jose Ikastetxea	Vargas	3
La Salle	Irizar	5
La Anunciata Ikastetxea	Aguado	2
Sagrado Corazon Mundaiz	Legarra	3

Average school size

Average number of participants per school.

Participants per school: 73.6

Renewal

School renewal includes the first recorded appearances of Altza Herri Ikastetxea and Compania de Maria. These entries represent newly observed schools in the available participation records, not evidence that either school was newly founded.

Rankings1

Debuting schools

Schools taking part for the first time in this edition.

1
Altza Herri Ikastetxea
58
2
Compania de Maria
49

Participation totaled 3310 in 2011, a decrease of -18.07% from the prior comparable period. The school structure averaged 73.56 participants per school, providing the clearest measure of participation scale across schools.